Manuals / Brands / Computer Equipment / Network Card / Motorola / Computer Equipment / Network Card

Motorola MC68VZ328 Chapter 14 Universal Asynchronous Receiver/Transmitter 1 and 2

1 376

Download 376 pages, 5.06 Mb

Universal Asynchronous Receiver/Transmitter 1 and 2 14-1

Chapter 14Universal Asynchronous Receiver/Transmitter 1 and 2

This chapter describes both UARTs in the DragonBall VZ integrated processor. The two UART ports in

the MC68VZ328 may be used to communicate with external serial devices. UART 1 in the DragonBall VZ

processor is identical to the UART in the DragonBall EZ processor, while UART 2 represents an enhanced

version of UART 1. One of the enhancements in the UART 2 design is an enlarged RxFIFO and TxFIFO

to reduce the number of software interrupts. An improvement to both UARTs is the system clock input

frequency, which is 33.16MHz, doubling the 16.58 MHz frequency of the MC68EZ328. For the

33.16 MHz system clock, software written for the MC68EZ328 version of the chip is not compatible

unless the divider and prescaler are adjusted accordingly to compensate for the increased clock speed.

Because the two UART modules are nearly identical, the signal nomenclature throughout this chapter use s

an x suffix to represent either 1 or 2. For example, TXDx represents either TXD1 or TXD2 depending on

which UART is being used.

14.1 Introduction to the UARTs

This section describes how data is transported in cha racter blocks using the standard “start-stop” format. It

also discusses how to configure and program the UART modules, which have the following features:

• Full-duplex operation

• Flexible 5-wire serial interface

• Direct “glueless” support of IrDA physical layer protocol

• Robust receiver data sampling with noise filtering

• 12-byte FIFO for receive, 8-byte FIFO for transmit (UART 1)

• “Old data” timer on receive FIFO

• 7- and 8-bit operation with optional parity

• Break generation and detection

• Baud rate generator

• Flexible clocking options

• Standard baud rates of 600bps to 230.4 kbps with 16x sample clock

• External 1x clock for high-speed synchronous communication

• Eight maskable interrupts

• Low-power idle model

Contents

Main Page Contents About This Book Chapter 1 Introduction Chapter 2 Signal Descriptions Chapter 3 Memory Map Chapter 4 Clock Generation Module and Power Control Module Chapter 5 System Control Chapter 6 Chip-Select Logic Chapter 7 DRAM Controller Chapter 9 Interrupt Controller Chapter 10 I/O Ports Chapter 11 Real-Time Clock Chapter 12 General-Purpose Timers Chapter 13 Serial Peripheral Interface 1 and 2 Chapter 14 Universal Asynchronous Receiver/Transmitter 1 and 2 Chapter 15 Pulse-Width Modulator 1 and 2 Chapter 16 In-Circuit Emulation Chapter 17 Bootstrap Mode Chapter 18 Application Guide Chapter 19 Electrical Characteristics Chapter 20 Mechanical Data and Ordering Information Index Page List of Figures Page Page Page List of Tables Page Page Page Page Page List of Examples Page About This Book Audience Organization Page Suggested Reading Conventions Definitions, Acronyms, and Abbreviations Chapter 1 Introduction 1.1 Features of the MC68VZ328 Page 1.2 CPU 1.2.1 CPU Programming Model 1-6 MC68VZ328 Users Manual CPU 1.2.2 Data and Address Mode Types 1.2.3 FLX68000 Instruction Set Table 1-1. Address Modes CPU 1.3 Modules of the MC68VZ328 1.3.1 Memory Controller 1.3.2 Clock Generation Module and Power Control Module 1.3.3 System Control 1.3.4 Chip-Select Logic 1.3.5 DRAM Controller 1.3.6 LCD Controller 1.3.7 Interrupt Controller 1.3.8 General-Purpose I/O (GPIO) Lines 1.3.9 Real-Time Clock 1.3.10 General-Purpose Timer 1.3.11 Serial Peripheral Interfaces (SPI) 1.3.12 Universal Asynchronous Receiver/Transmitter (UART) Modules 1.3.13 Pulse-Width Modulators (PWM) 1.3.14 In-Circuit Emulation Module 1.3.15 Bootstrap Mode Page Page 2-2 MC68VZ328 Users Manual Signals Grouped by Function Figure 2-1. Signals Grouped by Function 2.1 Signals Grouped by Function Table 2-1 on page2-3 groups the MC68VZ328 signals according to their function. Signals Grouped by Function Table 2-1. Signal Function Groups 2.2 Power and Ground Signals 2.3 Clock and System Control Signals 2.4 Address Bus Signals 2.5 Data Bus Signals 2.6 Bus Control Signals 2.7 Interrupt Controller Signals 2.8 LCD Controller Signals 2.9 UART 1 and UART 2 Controller Signals 2.10 Timer Signals 2.11 Pulse-Width Modulator Signals 2.12 Serial Peripheral Interface 1 Signals 2.13 Serial Peripheral Interface 2 Signals 2.14 Chip-Select and EDO RAM Interface Signals 2.15 SDRAM Interface Signals 2.16 In-Circuit Emulation (ICE) Signals Page Chapter 3 Memory Map Figure 3-1. MC68VZ328 System Memory Map 3-2 MC68VZ328 Users Manual 3.1 Programmers Memory Map Table 3-1. Programmers Memory Map (Sorted by Address) 3-4 MC68VZ328 Users Manual 3-6 MC68VZ328 Users Manual 3-8 MC68VZ328 Users Manual Table 3-2. Programmers Memory Map (Sorted by Register Name) 3-10 MC68VZ328 Users Manual 3-12 MC68VZ328 Users Manual Page Page Chapter 4 Clock Generation Module and Power Control Module 4.1 Introduction to the Clock Generation Module 4.2 CGM Operational Overview 4.3 Detailed CGM Clock Descriptions 4.3.1 CLK32 Clock Signal Eqn. 4-1 4.3.2 PLLCLK Clock Signal 4.3.2.1 PLLCLK Initial Power-up Sequence 4.3.2.2 PLL Frequency Selection Eqn. 4-2 4.3.2.3 PLLCLK Frequency Selection Programming Example 4.3.2.4 Programming Considerations When Changing Frequencies 4-8 MC68VZ328 Users Manual 4.4 CGM Programming Model This section describes the two registers that enable and control the frequency of the CGM clocks. 4.4.1 PLL Control Register PLLCR PLL Control Register 0xFFFFF200 Table 4-2. PLL Control Register Description 4.5 Introduction to the Power Control Module 4.5.1 Operating the PCM 4.5.1.1 Normal Mode 4.5.1.2 Burst Mode 4.5.1.3 Doze Mode 4.5.1.4 Sleep Mode 4.5.2 CGM Operation During Sleep Mode 4.5.3 Burst Mode Operation Page 4-14 MC68VZ328 Users Manual Introduction to the Power Control Module 4.5.4 Power Control Register PCTLR Power Control Register 0x(FF)FFF207 Table 4-5. Power Control Register Description Chapter 5 System Control 5.1 System Control Operation 5.1.1 Bus Monitors and Watchdog Timers 5-2 MC68VZ328 Users Manual 5.2 Programming Model 5.2.1 System Control Register SCR System Control Register 0x(FF)FFF000 Table 5-1. System Control Register Description Page 5-4 MC68VZ328 Users Manual 5.2.2 Peripheral Control Register PCR Peripheral Control Register 0x(FF)FFF003 Table 5-2. Peripheral Control Register Description 5.2.3 ID Register IDR ID Register 0x(FF)FFF004 Table 5-3. ID Register Description 5-6 MC68VZ328 Users Manual 5.2.4 I/O Drive Control Register IODCR I/O Drive Control Register 0x(FF)FFF008 Table 5-4. I/O Drive Control Register Description Chapter 6 Chip-Select Logic 6.1 Overview of the CSL 6.2 Chip-Select Operation 6.2.1 Memory Protection 6.2.2 Programmable Data Bus Size 6.2.3 Overlapping Chip-Select Registers 6.3 Programming Model 6.3.1 Chip-Select Group Base Address Registers CSGBA Chip-Select Group A Base Address Register 0x(FF)FFF100 CSGBB Chip-Select Group B Base Address Register 0x(FF)FFF102 CSGBC Chip-Select Group C Base Address Register 0x(FF)FFF104 6.3.2 Chip-Select Upper Group Base Address Register CSUGBA Chip-Select Upper Group Base Address Register 0 x(FF)FFF108 Table 6-5. Chip-Select Group D Base Address Register Description Table 6-6. Chip-Select Upper Group Base Address Register Description Table 6-6. Chip-Select Upper Group Base Address Register Description (Continued) 6.3.3 Chip-Select Registers CSA Chip-Select Register A 0x(FF)FFF110 Table 6-7. Chip-Select Register A Description Table 6-7. Chip-Select Register A Description (Continued) 6-10 MC68VZ328 Users Manual CSB Chip-Select Register B 0x(FF)FFF112 Table 6-8. Chip-Select Register B Description Table 6-8. Chip-Select Register B Description (Continued) 6-12 MC68VZ328 Users Manual CSC Chip-Select Register C 0x(FF)FFF114 Table 6-9. Chip-Select Register C Description Table 6-9. Chip-Select Register C Description (Continued) 6-14 MC68VZ328 Users Manual CSD Chip-Select Register D 0x(FF)FFF116 Table 6-10. Chip-Select Register D Description Table 6-10. Chip-Select Register D Description (Continued) 6.3.4 Emulation Chip-Select Register EMUCS Emulation Chip-Select Register 0x(FF)FFF118 6.3.5 Chip-Select Control Register 1 CSCTRL1 Chip-Select Control Register 1 0x(FF)FFF10A Table 6-12. Chip-Select Control Register 1 Description 6.3.6 Chip-Select Control Register 2 CSCTRL2 Chip-Select Control Register 2 0x(FF)FFF10C Table 6-13. Chip-Select Control Register 2 Description Table 6-12. Chip-Select Control Register 1 Description (Continued) ----------------------------------------= 6.3.7 Chip-Select Control Register 3 This register controls minor timing trims for static memory access. CSCTRL3 Chip-Select Control Register 3 0x(FF)FFF150 Table 6-14. Chip-Select Control Register 3 Description Page Page Chapter 7 DRAM Controller 7.1 Introduction to the DRAM Controller 7-2 MC68VZ328 Users Manual Introduction to the DRAM Controller Figure 7-1. DRAM Controller Block Diagram 7.2 DRAM Controller Operation 7.2.1 Address Multiplexing 7-4 MC68VZ328 Users Manual Table 7-1. DRAM Address Multiplexing Options Table 7-2. 16Mbit SDRAM256 (16-Bit) and 512 (8-Bit) Page Size Table 7-3. 64Mbit SDRAM256 (16-Bit) and 512 (8-Bit) Page Size 7-6 MC68VZ328 Users Manual Table 7-4. 128Mbit SDRAM512 (16-Bit) and 1024 (8-Bit) Page Size Table 7-5. 256Mbit SDRAM512 (16-Bit) and 1024 (8-Bit) Page Size 7.2.2 DTACK Generation 7.2.3 Refresh Control 7.2.4 LCD Interface 7.2.5 8-Bit Mode 7.2.6 Low-Power Standby Mode 7-10 MC68VZ328 Users Manual 7.2.7 Data Retention During Reset Figure 7-3. Data Retention for the Reset Cycle 7.2.8 Data Retention Sequence 7-12 MC68VZ328 Users Manual 7.3 Programming Model This section describes the programming model for the DRAM controller. 7.3.1 DRAM Memory Configuration Register DRAMMC DRAM Memory Configuration Register 0x(FF)FFFC00 Table 7-6. DRAM Memory Configuration Register Description Page 7-14 MC68VZ328 Users Manual 7.3.2 DRAM Control Register DRAMC DRAM Control Register 0x(FF)FFFC02 Table 7-7. DRAM Control Register Description Table 7-7. DRAM Control Register Description (Continued) 7-16 MC68VZ328 Users Manual 7.3.3 SDRAM Control Register SDCTRL SDRAM Control Register 0x(FF)FFFC04 Table 7-8. SDRAM Control Register Description Table 7-9. SDRAM Bank Address Programming Examples Table 7-8. SDRAM Control Register Description (Continued) 7.3.4 SDRAM Power-down Register SDPWDN SDRAM Power-down Register 0x(FF)FFFC06 Table 7-10. SDRAM Power-down Register Description Chapter 8 LCD Controller 8.1 LCD Controller Features 8.2 LCD Controller Operation 8.2.1 Connecting the LCD Controller to an LCD Panel 8.2.1.1 Panel Interface Timing 8-4 MC68VZ328 Users Manual LCD Controller Operation Figure 8-2. LCD Interface Timing for 4-, 2-, and 1-Bit Data Widths 8.2.2 Controlling the Display 8.2.2.1 Format of the LCD Screen 8.2.2.2 Format of the Cursor 8.2.2.3 Mapping the Display Data 8.2.2.4 Generating Grayscale Tones Page 8.2.3 Using Low-Power Mode 8.2.4 Using the DMA Controller 8.2.4.1 Bus Bandwidth Calculation Example 8.2.5 Self-Refresh Mode 8.2.5.1 Entering Self-Refresh Mode 8.2.5.2 Canceling Self-Refresh Mode 8-10 MC68VZ328 Users Manual 8.3 Programming Model and should be set to 0. 8.3.1 LCD Screen Starting Address Register LSSA LCD Screen Starting Address Register 0x(FF)FFFA00 Table 8-2. LCD Screen Starting Address Register Description 8.3.2 LCD Virtual Page Width Register LXMAX LCD Screen Width Register 0x(FF)FFFA08 LVPW LCD Virtual Page Widt h Register 0x(FF)FFFA05 8.3.3 LCD Screen Width Register Table 8-3. LCD Virtual Page Width Register Description 8.3.4 LCD Screen Height Register LCXP LCD Cursor X Position Register 0x(FF)FFFA18 LYMAX LCD Screen Height Register 0x(FF)FFFA0A 8.3.5 LCD Cursor X Position Register Table 8-5. LCD Screen Height Register Description 8.3.6 LCD Cursor Y Position Register LCYP LCD Cursor Y Position Register 0x(FF)FFFA1A Table 8-7. LCD Cursor Y Position Register Description Table 8-6. LCD Cursor X Position Register Description (Continued) 8.3.7 LCD Cursor Width and Height Register LCWCH LCD Cursor Width and Height Register 0x(FF)FFFA1C 8.3.8 LCD Blink Control Register LBLKC LCD Blink Control Register 0x(FF)FFFA1F LPICF LCD Panel Interface Configuration Register 0x(FF)FFFA20 8.3.9 LCD Panel Interface Configuration Register Table 8-9. LCD Blink Control Register Description Table 8-10. LCD Panel Interface Configuration Register Description 8-16 MC68VZ328 Users Manual 8.3.10 LCD Polarity Configuration Register LPOLCF LCD Polarity Configuration Register 0x(FF)FFFA21 8.3.11 LACD Rate Control Register Table 8-11. LCD Polarity Configuration Register Description LACDRC LACD Rate Control Register 0x(FF)FFFA23 8.3.12 LCD Pixel Clock Divider Register Table 8-12. LACD Rate Control Register Description Table 8-13. LCD Pixel Clock Divider Register Description 8-18 MC68VZ328 Users Manual 8.3.13 LCD Clocking Control Register LRRA LCD Refresh Rate Adjustment Register 0x(FF)FFFA28 LCKCON LCD Clocking Control Register 0x(FF)FFFA27 8.3.14 LCD Refresh Rate Adjustment Register Table 8-14. LCD Clocking Control Register Description 8.3.15 LCD Panning Offset Register LPOSR LCD Panning Offset Register 0x(FF)FFFA2D 8.3.16 LCD Frame Rate Control Modulation Register Table 8-16. LCD Panning Offset Register Description Table 8-15. LCD Refresh Rate Adjustment Register Description (Continued) 8.3.17 LCD Gray Palette Mapping Register PWMR PWM Contrast Control Register 0x(FF)FFFA36 LGPMR LCD Gray Palette Mapping Register 0x(FF)FFFA33 8.3.18 PWM Contrast Control Register Table 8-17. LCD Gray Palette Mapping Register Description 8.3.19 Refresh Mode Control Register RMCR Refresh Mode Control Register 0x(FF)FFFA38 Table 8-19. Refresh Mode Control Register Description Table 8-18. PWM Contrast Control Register Description (Continued) 8.3.20 DMA Control Register 8.4 Programming Example Chapter 9 Interrupt Controller 9.1 Interrupt Processing 9.2 Exception Vectors 9.3 Reset 9.3.1 Operation Mode Selection During Reset 9.3.2 Data Bus Width for Boot Device Operation 9.4 Interrupt Controller Operation 9.4.1 Interrupt Priority Processing 9.4.2 Interrupt Vectors 9.5 Vector Generation 9.6 Programming Model 9.6.1 Interrupt Vector Register IVR Interrupt Vector Register 0x(FF)FFF300 9-8 MC68VZ328 Users Manual 9.6.2 Interrupt Control Register ICR Interrupt Control Register 0x(FF)FFF302 Table 9-4. Interrupt Control Register Description Table 9-4. Interrupt Control Register Description (Continued) 9.6.3 Interrupt Mask Register IMR Interrupt Mask Register 0x(FF)FFF304 Table 9-5. Interrupt Mask Register Description Table 9-5. Interrupt Mask Register Description (Continued) 9.6.4 Interrupt Status Register ISR Interrupt Status Register 0xFFFFF30C Table 9-6. Interrupt Status Register Description Table 9-6. Interrupt Status Register Description (Continued) 9-14 MC68VZ328 Users Manual Table 9-6. Interrupt Status Register Description (Continued) Page 9-16 MC68VZ328 Users Manual 9.6.5 Interrupt Pending Register IPR Interrupt Pending Register 0x(FF)FFF310 Table 9-7. Interrupt Pending Register Description Table 9-7. Interrupt Pending Register Description (Continued) 9-18 MC68VZ328 Users Manual Table 9-7. Interrupt Pending Register Description (Continued) 9.6.6 Interrupt Level Register ILCR Interrupt Level Register 0x(FF)FFF314 9.7 Keyboard Interrupts 9.8 Pen Interrupts Chapter 10 I/O Ports 10.1 Port Configuration 10.2 Status of I/O Ports During Reset 10.2.1 Warm Reset 10.2.2 Power-up Reset 10.2.3 Summary of Port Behavior During Reset 10.3 I/O Port Operation 10.3.1 Data Flow from the I/O Module 10.3.2 Data Flow to the I/O Module 10.3.3 Operating a Port as GPIO 10.3.4 Port Pull-up and Pull-down Resistors 10.4 Programming Model 10.4.1 Port A Registers 10.4.1.1 Port A Direction Register PADATA Port A Data Register 0x(FF)FFF401 PADIR Port A Direction Register 0x(FF)FFF400 10.4.2 Port B Registers 10.4.2.1 Port B Direction Register PBDIR Port B Direction Register 0x(FF)FFF408 10.4.2.2 Port B Data Register PBDATA Port B Data Register 0x(FF)FFF409 10.4.2.3 Port B Dedicated I/O Functions 10.4.2.4 Port B Pull-up Enable Register PBPUEN Port B Pull-up Enable Register 0x(FF)FFF40A 10.4.2.5 Port B Select Register PBSEL Port B Select Register 0x(FF)FFF40B 10.4.3 Port C Registers 10.4.3.1 Port C Direction Register PCDIR Port C Direction Register 0x(FF)FFF410 10.4.3.2 Port C Data Register PCDATA Port C Data Register 0x(FF)FFF411 10.4.3.3 Port C Dedicated I/O Functions 10.4.3.5 Port C Select Register PCSEL Port C Select Register 0x(FF)FFF413 Table 10-16. Port C Select Register Description 10.4.4 Port D Operation 10.4.5 Port D Registers 10.4.5.1 Port D Direction Register PDDIR Port D Direction Register 0x(FF)FFF418 10.4.5.2 Port D Data Register PDDATA Port D Data Register 0x(FF)FFF419 10.4.5.3 Port D Interrupt Options 10.4.5.4 Port D Pull-up Enable Register PDPUEN Port D Pull-up Enable Register 0x(FF)FFF41A 10.4.5.5 Port D Select Register PDPOL Port D Polarity Register 0x(FF)FFF41C 10.4.5.7 Port D Interrupt Request Enable Register PDIRQEN Port D Interrupt Request Enable Register 0x(FF)FFF41D 10.4.5.8 Port D Keyboard Enable Register PDKBEN Port D Keyboard Enable Register 0x(FF)FFF41E 10.4.5.9 Port D Interrupt Request Edge Register 10.4.6 Port E Registers 10.4.6.1 Port E Direction Register 10.4.6.2 Port E Data Register PEDATA Port E Data Register 0x(FF)FFF421 10.4.6.3 Port E Dedicated I/O Functions 10.4.6.4 Port E Pull-up Enable Register PESEL Port E Select Register 0x(FF)FFF423 10.4.7 Port F Registers 10.4.7.1 Port F Direction Register PFDIR Port F Direction Register 0x(FF)FFF428 10.4.7.2 Port F Data Register PFDATA Port F Data Register 0x(FF)FFF429 10.4.7.3 Port F Dedicated I/O Functions 10.4.7.4 Port F Pull-up/Pull-down Enable Register PFSEL Port F Select Register 0x(FF)FFF42B PFPUEN Port F Pull-up/Pull-down Enable Register 0x(FF)FFF42A 10.4.7.5 Port F Select Register 10.4.8 Port G Registers 10.4.8.1 Port G Direction Register PGDIR Port G Direction Register 0x(FF)FFF430 10.4.8.2 Port G Data Register PGDATA Port G Data Register 0x(FF)FFF431 10.4.8.4 Port G Operational Considerations 10.4.8.5 Port G Pull-up Enable Register PGPUEN Port G Pull-up Enable Register 0x(FF)FFF432 10.4.8.6 Port G Select Register PGSEL Port G Select Register 0x(FF)FFF433 10.4.9 Port J Registers 10.4.9.1 Port J Direction Register 10.4.9.2 Port J Data Register PJDATA Port J Data Register 0x(FF)FFF439 10.4.9.3 Port J Dedicated I/O Functions 10.4.9.4 Port J Pull-up Enable Register PJPUEN Port J Pull-up Enable Register 0x(FF)FFF43A 10.4.10 Port K Registers 10.4.10.1 Port K Direction Register PKDIR Port K Direction Register 0x(FF)FFF440 10.4.10.2 Port K Data Register PKDATA Port K Data Register 0x(FF)FFF441 10.4.10.4 Port K Pull-up/Pull-down Enable Register PKPUEN Port K Pull-up/Pull-down Enable Register 0x(FF)FFF442 PKSEL Port K Select Register 0x(FF)FFF443 10.4.10.5 Port K Select Register 10.4.11 Port M Registers 10.4.11.1 Port M Direction Register PMDIR Port M Direction Register 0x(FF)FFF448 10.4.11.2 Port M Data Register PMDATA Port M Data Register 0x(FF)FFF449 10.4.11.3 Port M Dedicated I/O Functions PMPUEN Port M Pull-up/Pull-down Enable Register 0x(FF)FFF44A 10.4.11.4 Port M Pull-up/Pull-down Enable Register 10.4.11.5 Port M Select Register PMSEL Port M Select Register 0x(FF)FFF44B Table 10-55. Port M Select Register Description Chapter 11 Real-Time Clock Figure 11-1. Real-Time Clock Module Simplified Block Diagram 11.1 RTC Overview 11.1.1 Prescaler 11.1.2 Time-of-Day Counter 11.1.3 Alarm 11.1.4 Watchdog Timer 11.1.5 Real-Time Interrupt Timer 11.1.6 Minute Stopwatch 11.1.6.1 Minute Stopwatch Application Example 11.2 Programming Model 11.2.1 RTC Time Register RTCTIME RTC Hours, Minutes, and Seconds Register 0x(FF)FFFB00 Table 11-2. RTC Hours, Minutes, and Seconds Register Description 11.2.2 RTC Day Count Register DAYR RTC Day Counter Register 0x(ff)FFFB1A 11.2.3 RTC Alarm Register RTCALRM RTC Alarm Register 0x(ff)FFFB04 Table 11-4. RTC Alarm Register Description 11-8 MC68VZ328 Users Manual 11.2.4 RTC Day Alarm Register DAYALRM RTC Day Alarm Register 0x(ff)FFFB1C Table 11-5. RTC Day Alarm Register Description 11.2.5 Watchdog Timer Register WATCHDOG Watchdog Timer Register 0x(ff)FFFB0A Table 11-6. Watchdog Timer Register Description 11.2.6 RTC Control Register RTCCTL RTC Control Register 0x(ff)FFFB0C 11.2.7 RTC Interrupt Status Register RTCISR RTC Interrupt Status Register 0x(ff)FFFB0E Table 11-8. RTC Interrupt Status Register Description 11.2.8 RTC Interrupt Enable Register Table 11-9. Real-Time Interrupt Frequency Settings Table 11-8. RTC Interrupt Status Register Description (Continued) RTCIENR RTC Interrupt Enable Register 0x(ff)FFFB10 Table 11-10. RTC Interrupt Enable Register Description 11.2.9 Stopwatch Minutes Register STPWCH Stopwatch Minutes Register 0x(FF)FFFB12 Table 11-11. Stopwatch Minutes Register Description Table 11-10. RTC Interrupt Enable Register Description (Continued) Chapter 12 General-Purpose Timers 12.1 GP Timer Overview 12.1.1 Clock Source and Prescaler 12.1.2 Timer Events and Modes of Operation 12.1.2.1 Restart Mode 12.1.2.2 Free-Running Mode 12.1.3 Timer Capture Register 12.1.4 TOUT/TIN/PB6 Pin 12.1.5 Cascaded Timers 12.1.5.1 Compare and Capture Using Cascaded Timers Page 12.2 Programming Model 12.2.1 Timer Control Registers 1 and 2 TCTL2 Timer Control Register 2 0x(FF)FFF610 TCTL1 Timer Control Register 1 0x(FF)FFF600 Table 12-2. Timer Control Register Description (Continued) 12.2.2 Timer Prescaler Registers 1 and 2 TPRER2 Timer Prescaler Register 2 0x(FF)FFF612 TPRER1 Timer Prescaler Register 1 0x(FF)FFF602 Table 12-3. Timer Prescaler Register Description 12.2.3 Timer Compare Registers 1 and 2 TCMP2 Timer Compare Register 2 0x(FF)FFF614 TCMP1 Timer Compare Register 1 0x(FF)FFF604 Table 12-4. Timer Compare Register Description 12-10 MC68VZ328 Users Manual 12.2.4 Timer Capture Registers 1 and 2 TCR2 Timer Capture Register 2 0x(FF)FFF616 TCR1 Timer Capture Register 1 0x(FF)FFF606 Table 12-5. Timer Capture Register Description 12.2.5 Timer Counter Registers 1 and 2 TCN2 Timer Counter Register 2 0x(FF)FFF618 TCN1 Timer Counter Register 1 0x(FF)FFF608 Table 12-6. Timer Counter Register Description 12-12 MC68VZ328 Users Manual 12.2.6 Timer Status Registers 1 and 2 TSTAT2 Timer Status Register 2 0x(FF)FFF61A TSTAT1 Timer Status Register 1 0x(FF)FFF60A Table 12-7. Timer Status Register Description Chapter 13 Serial Peripheral Interface 1 and 2 13.1 SPI 1 Overview 13.2 SPI 1 Operation 13.2.1 Using SPI 1 as Master 13.2.2 Using SPI 1 as Slave 13.2.3 SPI 1 Phase and Polarity Configurations 13.2.4 SPI 1 Signals 13.3 SPI 1 Programming Model 13.3.1 SPI 1 Receive Data Register SPIRXD SPI 1 Receive Data Register 0x(FF)FFF700 13.3.2 SPI 1 Transmit Data Register SPITXD SPI 1 Transmit Data Register 0x(FF)FFF7 02 13-6 MC68VZ328 Users Manual 13.3.3 SPI 1 Control/Status Register SPICONT1 SPI 1 Control/Status Register 0x(FF)FFF704 Table 13-3. SPI 1 Control/Status Register Description Table 13-3. SPI 1 Control/Status Register Description (Continued) 13-8 MC68VZ328 Users Manual 13.3.4 SPI 1 Interrupt Control/Status Register SPIINTCS SPI 1 Interrupt Control/Status Register 0x(FF)FFF706 Table 13-4. SPI 1 Interrupt Control/Status Register Description Table 13-4. SPI 1 Interrupt Control/Status Register Description (Continued) 13-10 MC68VZ328 Users Manual 13.3.5 SPI 1 Test Register SPITEST SPI 1 Test Register 0x(FF)FFF708 13.3.6 SPI 1 Sample Period Control Register Table 13-5. SPI 1 Test Register Description SPI 2 Overview 13.4 SPI 2 Overview Figure 13-3. SPI 2 Block Diagram Table 13-6. SPI 1 Sample Period Control Register Description 13.5 SPI 2 Operation 13.5.1 SPI 2 Phase and Polarity Configurations 13.5.2 SPI 2 Signals 13.6 SPI 2 Programming Model 13.6.1 SPI 2 Data Register SPIDATA2 SPI 2 Data Register 0x(FF)FFF800 13.6.2 SPI 2 Data Register Timing SPI 2 Programming Model 13.6.3 SPI 2 Control/Status Register SPICONT2 SPI 2 Control/Status Register 0x(FF)FFF802 Table 13-8. SPI 2 Control/Status Register Description 13-16 MC68VZ328 Users Manual SPI 2 Programming Model Table 13-8. SPI 2 Control/Status Register Description (Continued) Chapter 14 Universal Asynchronous Receiver/Transmitter 1 and 2 14.1 Introduction to the UARTs 14.2 Serial Operation 14.2.1 NRZ Mode 14.2.2 IrDA Mode 14.2.3 Serial Interface Signals 14.3 UART Operation 14.3.1 Transmitter Operation 14.3.1.1 TxFIFO Buffer Operation 14.3.1.2 CTS Signal Operation 14.3.2 Receiver Operation 14.3.2.1 Rx FIFO Buffer Operation 14.3.3 Baud Rate Generator Operation 14.3.3.1 Divider 14.3.3.2 Non-Integer Prescaler Page UART Operation 14.3.3.3 Integer Prescaler 14-10 MC68VZ328 Users Manual 14.4 Programming Model 14.4.1 UART 1 Status/Control Register USTCNT1 UART 1 Status/Control Register 0x(FF)FFF900 Table 14-4. UART 1 Status/Control Register Description Table 14-4. UART 1 Status/Control Register Description (Continued) 14.4.2 UART 1 Baud Control Register UBAUD1 UART 1 Baud Control Register 0x(FF)FFF902 Table 14-5. UART 1 Baud Control Register Description 14.4.3 UART 1 Receiver Register URX1 UART 1 Receiver Register 0x(FF)FFF904 Table 14-6. UART 1 Receiver Register Description 14-14 MC68VZ328 Users Manual 14.4.4 UART 1 Transmitter Register UTX1 UART 1 Transmitter Register 0x(FF)FFF906 Table 14-7. UART 1 Transmitter Register Description Table 14-6. UART 1 Receiver Register Description (Continued) Table 14-7. UART 1 Transmitter Register Description (Continued) 14.4.5 UART 1 Miscellaneous Register UMISC1 UART 1 Miscellaneous Register 0x(FF)FFF908 Table14-8. UART 1 Miscellaneous Register Description Table 14-8. UART 1 Miscellaneous Register Description (Continued) 14-18 MC68VZ328 Users Manual 14.4.6 UART 1 Non-Integer Prescaler Register NIPR1 UART 1 Non-Integer Prescaler Register 0x(FF)FFF90A Table 14-9. UART 1 Non-Integer Prescaler Register Description 14.4.7 Non-Integer Prescaler Programming Example 14-20 MC68VZ328 Users Manual 14.4.8 UART 2 Status/Control Register USTCNT2 UART 2 Status/Control Register 0x(FF)FFF910 Table 14-10. UART 2 Status/Control Register Description Table 14-10. UART 2 Status/Control Register Description (Continued) 14-22 MC68VZ328 Users Manual 14.4.9 UART 2 Baud Control Register UBAUD2 UART 2 Baud Control Register 0x(FF)FFF912 Table 14-11. UART 2 Baud Control Register Description 14.4.10 UART 2 Receiver Register URX2 UART 2 Receiver Register 0x(FF)FFF914 Table 14-12. UART 2 Receiver Register Description 14-24 MC68VZ328 Users Manual 14.4.11 UART 2 Transmitter Register UTX2 UART 2 Transmitter Register 0x(FF)FFF916 Table 14-13. UART 2 Transmitter Register Description Table 14-12. UART 2 Receiver Register Description (Continued) Table 14-13. UART 2 Transmitter Register Description (Continued) 14.4.12 UART 2 Miscellaneous Register UMISC2 UART 2 Miscellaneous Register 0x(FF)FFF918 Table14-14. UART 2 Miscellaneous Register Description Table 14-14. UART 2 Miscellaneous Register Description (Continued) 14-28 MC68VZ328 Users Manual 14.4.13 UART 2 Non-Integer Prescaler Register NIPR2 UART 2 Non-Integer Prescaler Register 0x(FF)FFF91A Table 14-15. UART 2 Non-Integer Prescaler Register Description 14.4.14 FIFO Level Marker Interrupt Register HMARK FIFO Level Marker Interrupt Register 0x(FF)FFF91C Table 14-16. FIFO Level Marker Interrupt Register Description 14-30 MC68VZ328 Users Manual Table 14-17. FIFO Level Marker Settings Chapter 15 Pulse-Width Modulator 1 and 2 15.1 Introduction to PWM Operation 15.1.1 PWM Clock Signals 15.2 PWM 1 15.3 PWM Operation 15.3.1 Playback Mode 15.3.1.1 Tone Mode 15.3.1.2 D/A Mode 15-4 MC68VZ328 Users Manual 15.4 Programming Model This section contains programming information about both PWM 1 and PWM 2. 15.4.1 PWM 1 Control Register PWMC1 PWM 1 Control Register 0x(FF)FFF500 Table 15-1. PWM 1 Control Register Description 15.4.2 PWM 1 Sample Register PWMS1 PWM 1 Sample Re gister 0x(FF)FFF502 15.4.3 PWM 1 Period Register PWMCNT1 PWM 1 Counter Register 0x(FF)FFF505 Eqn. 15-1 PWMP1 PWM 1 Period Register 0x(FF)FFF504 15.4.4 PWM 1 Counter Register 15.5 PWM 2 Figure 15-4. PWM 2 Block Diagram 15.5.1 PWM 2 Control Register PWMC2 PWM 2 Control Register 0x(FF)FFF510 Table 15-5. PWM 2 Control Register Description 15.5.2 PWM 2 Period Register PWMP2 PWM 2 Period Register 0x(FF)FFF512 Table 15-6. PWM 2 Period Register Description Table 15-5. PWM 2 Control Register Description (Continued) 15-10 MC68VZ328 Users Manual 15.5.3 PWM 2 Pulse Width Register PWMCNT2 PWM 2 Counter Register 0x(FF)FFF516 PWMW2 PWM 2 Pulse Width Control Register 0x(FF)FFF514 15.5.4 PWM 2 Counter Register Table 15-7. PWM 2 Pulse Width Control Register Description Chapter 16 In-Circuit Emulation 16.1 ICE Operation 16.1.1 Entering Emulation Mode 16.1.2 Detecting Breakpoints 16.1.2.1 Execution Breakpoints vs. Bus Breakpoints 16.1.3 Using the Signal Decoder 16.1.4 Using the Interrupt Gate Module 16.1.5 Using the A-Line Insertion Unit 16.2 Programming Model 16.2.1 In-Circuit Emulation Module Address Compare and Mask Registers ICEMACR ICE Module Address Compare Register 0x(FF)FFFFFD00 ICEMAMR ICE Module Address Mask Register 0x (FF)FFFFFD04 Table 16-1. ICE Module Address Compare and Mask Registers Description 16.2.2 In-Circuit Emulation Module Control Compare and Mask Register ICEMCCR ICE Module Control Compare Register 0x(FF)FFFFFD08 ICEMCMR ICE Control Mask Register 0x(FF)FFFFFD0A Page 16-8 MC68VZ328 Users Manual 16.2.3 In-Circuit Emulation Module Control Register ICEMCR ICE Module Control Register 0x(FF)FFFFFD0C Table 16-4. ICE Module Control Register Description Page 16.2.4 In-Circuit Emulation Module Status Register ICEMSR ICE Module Status Register 0x(FF)FFFFFD0E 16.3 Typical Design Programming Example Typical Design Programming Example Figure 16-2. Typical Emulator Design Example 16.3.1 Host Interface 16.3.2 Dedicated Debug Monitor Memory 16.4 Plug-in Emulator Design Example Page 16-14 MC68VZ328 Users Manual Application Development Design Example 16.5 Application Development Design Example Figure 16-4. Application Development System Design Example Chapter 17 Bootstrap Mode 17.1 Bootstrap Mode Operation 17.1.1 Entering Bootstrap Mode 17.1.2 Bootstrap Record Format 17.1.2.1 Data B-Record Format 17.1.2.2 Execution B-Record Format 17.1.3 Setting Up the RS-232 Terminal 17.1.4 Changing the Speed of Communication 17.1.5 System Initialization Programming Example 17.1.6 Application Programming Example 17.1.7 Example of Instruction Buffer Usage 17.2 Bootloader Flowchart Bootloader Flowchart Figure 17-2. Bootloader Program Operation 17.3 Special Notes Chapter 18 Application Guide 18.1 Design Checklist 18.1.1 Determining the Chip ID and Version 18.1.2 8-Bit Bus Width Issues 18.1.3 Clock and Layout Considerations 18.1.4 Bus and I/O Considerations Chapter 19 Electrical Characteristics 19.1 Maximum Ratings 19-2 MC68VZ328 Users Manual 19.2 DC Electrical Characteristics Table 19-2 contains both maximum and minimum DC characteristics of the MC68VZ328. 19.3 AC Electrical Characteristics 19.3.1 CLKO Reference to Chip-Select Signals Timing Table 19-2. Maximum and Minimum DC Characteristics 19.3.2 Chip-Select Read Cycle Timing Table 19-3. CLKO Reference to Chip-Select Signals Timing Parameters 19-4 MC68VZ328 Users Manual 19.3.3 Chip-Select Write Cycle Timing Figure 19-3. Chip-Select Write Cycle Timing Diagram Table 19-4. Chip-Select Read Cycle Timing Parameters (Continued) 19-6 MC68VZ328 Users Manual 19.3.4 Chip-Select Flash Write Cycle Timing Table 19-5. Chip-Select Write Cycle Timing Parameters Page 19.3.5 Chip-Select Timing Trim 19.3.6 DRAM Read Cycle 16-Bit Access (CPU Bus Master) Page 19-10 MC68VZ328 Users Manual 19.3.7 DRAM Write Cycle 16-Bit Access (CPU Bus Master) Figure 19-7. DRAM Write Cycle 16-Bit Access (CPU Bus Master) Timing Diagram Table 19-8. DRAM Read Cycle 16-Bit Access (CPU Bus Master) Timing Parameters (Continued) 19.3.8 DRAM Hidden Refresh Cycle (Normal Mode) Table 19-9. DRAM Write Cycle 16-Bit Access (CPU Bus Master) Timing Parameters 19-12 MC68VZ328 Users Manual Figure 19-8. DRAM Hidden Refresh Cycle (Normal Mode) Timing Diagram 19.3.9 DRAM Hidden Refresh Cycle (Low-Power Mode) Figure 19-9. DRAM Hidden Refresh Cycle (Low-Power Mode) Timing Diagram Table 19-10. DRAM Hidden Refresh Cycle (Normal Mode) Timing Parameters 19.3.10 LCD SRAM/ROM DMA Cycle 16-Bit Mode Access (1 Wait State) Figure 19-10. LCD SRAM/ROM DMA Cycle 16-Bit Mode Access Timing Diagram Table 19-11. DRAM Hidden Refresh Cycle (Low-Power Mode) Timing Parameters 19-14 MC68VZ328 Users Manual 19.3.11 LCD DRAM DMA Cycle 16-Bit EDO RAM Mode Access (LCD Bus Master) Figure 19-11. LCD DRAM DMA Cycle 16-Bit EDO RAM Mode Access (LCD Bus Master) Timing Diagram Table 19-12. LCD SRAM/ROM DMA Cycle 16-Bit Mode Access Timing Parameters Table 19-13. LCD DRAM DMA Cycle 16-Bit EDO RAM Mode Access (LCD Bus Master) Timing Parameters 19-16 MC68VZ328 Users Manual 19.3.12 LCD DRAM DMA Cycle 16-Bit Fast Page Mode Access (LCD Bus Master) 19.3.13 LCD Controller Timing Figure 19-13. LCD Controller Timing Diagram (Normal Mode) Page 19.3.14 Page-Miss SDRAM CPU Read Cycle (CAS Figure 19-15. Page-Miss SDRAM CPU Read Cycle Timing Diagram 19-20 MC68VZ328 Users Manual 19.3.15 Page-Hit SDRAM CPU Read Cycle (CAS Latency = 1) Figure 19-16. Page-Hit SDRAM CPU Read Cycle Timing Diagram 19.3.16 Page-Hit CPU Read Cycle for 8-Bit SDRAM (CAS Figure 19-17. Page-Hit CPU Read Cycle for 8-Bit SDRAM Timing Diagram 19-22 MC68VZ328 Users Manual 19.3.17 Page-Miss SDRAM CPU Write Cycle (CAS Figure 19-18. Page-Miss SDRAM CPU Write Cycle Timing Diagram 19.3.18 Page-Hit SDRAM CPU Write Cycle (CAS Latency = 1) Figure 19-19. Page-Hit SDRAM CPU Write Cycle Timing Diagram 19-24 MC68VZ328 Users Manual 19.3.19 Page-Hit CPU Byte-Write Cycle for 8-Bit SDRAM (CAS Figure 19-20. Page-Hit CPU Byte-Write Cycle for 8-Bit SDRAM Timing Diagram Figure 19-21. Page-Hit CPU Read Cycle in Power-down Mode Timing Diagram 19-26 MC68VZ328 Users Manual Figure 19-22. Exit Self-Refresh Due to CPU Read Cycle Timing Diagram 19.3.22 Enter Self-Refresh Due to No Activity for 64 Clocks (Bit RM of DRAM Control Register = 1) 19-28 MC68VZ328 Users Manual 19.3.23 Page-Miss at Starting of LCD DMA for SDRAM (CAS Figure 19-24. Page-Miss at Starting of LCD DMA for SDRAM Timing Diagram 19.3.24 Page-Miss at Start and in Middle of LCD DMA (CAS Figure 19-25. Page-Miss at Start and in Middle of LCD DMA Timing Diagram 19-30 MC68VZ328 Users Manual 19.3.25 Page-Hit LCD DMA Cycle for SDRAM (CAS Figure 19-26. Page-Hit LCD DMA Cycle for SDRAM Timing Diagram Table 19-16. Timing Parameters for Figure19-15 Through Figure 19-26 19.3.26 SPI 1 and SPI 2 Generic Timing 19.3.27 SPI 1 Master Using DATA_READY Edge Trigger 19.3.28 SPI 1 Master Using DATA_READY Level Trigger 19.3.29 SPI 1 Master Dont Care DATA_READY 19.3.30 SPI 1 Slave FIFO Advanced by Bit Count 19-34 MC68VZ328 Users Manual 19.3.31 SPI 1 Slave FIFO Advanced by SS Rising Edge 19.3.32 Normal Mode Timing 19.3.33 Emulation Mode Timing 19.3.34 Bootstrap Mode Timing Chapter 20 Mechanical Data and Ordering Information This chapter provides mechanical data, including illustrations, and ordering information. 20.1 Ordering Information Table 20-1. MC68VZ328 Ordering Information 20-2 MC68VZ328 Users Manual 20.2 TQFP Pin Assignments Figure 20-1 provides a top view of TQFP pin assignments. Figure 20-1. MC68VZ328 TQFP Pin AssignmentsTop View MC68VZ328 Top View TQFP Package Dimensions 20.3 TQFP Package Dimensions Figure 20-2. MC68VZ328 TQFP Mechanical Drawing 20-4 MC68VZ328 Users Manual MAPBGA Pin Assignments Top View 20.4 MAPBGA Pin Assignments Figure 20-3 provides a top view of the MAPBGA pin assignments. Figure 20-3. MC68VZ328 MAPBGA Pin AssignmentsTop View 1 A 23456789101112 B C D E F G H J K L M 20.5 MAPBGA Package Dimensions Figure 20-4. MC68VZ328 MAPBGA Mechanical Drawing CASE 1242A-03 ISSUE B Page Index Numerics A B C Page D E F G H I Page K L M N O P Page Page Q R S Page T U V W X Y