Freescale Semiconductor DSP56366 7 Serial Host Interface

DSP56366 24-Bit Digital Signal Processor User Manual, Rev. 4

Freescale Semiconductor 7-1

7 Serial Host Interface

7.1 Introduction

The Serial Host Interface (SHI) is a serial I/O interface that provides a path for communication and

program/coefficient data transfers between the DSP and an external host processor. The SHI can also

communicate with other serial peripheral devices. The SHI supports two well-known and widely used

synchronous serial buses: the Freescale Serial Peripheral Interface (SPI) bus and the Philips

Inter-Integrated-Circuit Control (I2C) bus. The SHI supports either bus protocol as either a slave or a

single-master device. To minimize DSP overhead, the SHI supports 8-bit, 16-bit and 24-bit data transfers.

The SHI has a 1 or 10-word receive FIFO that permits receiving up to 30 bytes before generating a receive

interrupt, reducing the overhead for data reception.

When configured in the SPI mode, the SHI can perform the following functions:

• Identify its slave selection (in slave mode)

• Simultaneously transmit (shift out) and receive (shift in) serial data

• Directly operate with 8-, 16- and 24-bit words

• Generate vectored interrupts separately for receive and transmit events and update status bits

• Generate a separate vectored interrupt for a receive exception

• Generate a separate vectored interrupt for a bus-error exception

• Generate the serial clock signal (in master mode)

• Trigger DMA interrupts to service the transmit and receive events

When configured in the I2C mode, the SHI can perform the following functions:

• Detect/generate start and stop events

• Identify its slave (ID) address (in slave mode)

• Identify the transfer direction (receive/transmit)

• Transfer data byte-wise according to the SCL clock line

• Generate ACK signal following a byte receive

• Inspect ACK signal following a byte transmit

• Directly operate with 8-, 16- and 24-bit words

• Generate vectored interrupts separately for receive and transmit events and update status bits

• Generate a separate vectored interrupt for a receive exception

• Generate a separate vectored interrupt for a bus error exception

• Generate the clock signal (in master mode)

• Trigger DMA interrupts to service the transmit and receive events

Contents

Main Page Contents Page Page Page 8 Enhanced Serial AUDIO Interface (ESAI) . . . . . . . . . . . . . . . . . . . . . . . . . . .8-1 Page Page 9 Enhanced Serial Audio Interface 1 (ESAI_1) . . . . . . . . . . . . . . . . . . . . . . . . .9-1 Page Page Page Page List of Figures Page Page Page List of Tables Page Preface Manual Conventions Page Page Freescale Semiconductor 1-1 1 DSP56366 Overview 1.1 Introduction Figure 1-1 DSP56366 Block Diagram MEMORY EXPANSION AREA PERIPHERAL 1.2 DSP56300 Core Description 1.3 DSP56366 Audio Processor Architecture 1.4 DSP56300 Core Functional Blocks 1.4.1 Data ALU 1.4.1.1 Data ALU Registers 1.4.1.2 Multiplier-Accumulator (MAC) 1.4.2 Address Generation Unit (AGU) 1.4.3 Program Control Unit (PCU) 1.4.4 Internal Buses 1.4.5 Direct Memory Access (DMA) 1.4.6 PLL-based Clock Oscillator 1.4.7 JTAG TAP and OnCE Module 1.4.8 On-Chip Memory 1.4.9 Off-Chip Memory Expansion 1.5 Peripheral Overview 1.5.1 Host Interface (HDI08) 1.5.2 General Purpose Input/Output (GPIO) 1.5.3 Triple Timer (TEC) 1.5.4 Enhanced Serial Audio Interface (ESAI) 1.5.5 Enhanced Serial Audio Interface 1 (ESAI_1) 1.5.6 Serial Host Interface (SHI) 1.5.7 Digital Audio Transmitter (DAX) 2 Signal/Connection Descriptions 2.1 S ignal Groupings DSP56366 2.2 Power 2.3 Ground Table2-2 Power Inputs Table2-3 Grounds 2.4 Clock and PLL Table2-4 Clock and PLL Signals Table2-3 Grounds (continued) 2.5 E xternal Memory Expansion Port (Port A) 2.5.3 External Bus Control 2.5.1 External Address Bus 2.5.2 External Data Bus Table2-5 External Address Bus Signals Table2-7 External Bus Control Signals (continued) 2.6 Interrupt and Mode Control Table2-7 External Bus Control Signals (continued) Table2-8 Interrupt and Mode Control 2.7 PARALLEL HOST INTERFACE (HDI08) Table2-9 Host Interface Page Page 2.8 Serial Host Interface Table2-10 Serial Host Interface Signals Page Table2-10 Serial Host Interface Signals (continued) 2.9 E nhanced Serial Audio Interface Table2-11 Enhanced Serial Audio Interface Signals Page Page Page 2.10 Enhanced Serial Audio Interface_1 Table2-12 Enhanced Serial Audio Interface_1 Signals Table2-12 Enhanced Serial Audio Interface_1 Signals (continued) 2.11 SPDIF Transmitter Digital Audio Interface Table2 -13 Digital Audio Interface (DAX) Signals Table2-12 Enhanced Serial Audio Interface_1 Signals (continued) 2.12 Timer 2.13 JTAG/OnCE Interface Table2-14 Timer Signal Table2-15 JTAG/OnCE Interface 3 Memory Configuration 3.1 Data and Program Memory Maps Table3-1 Internal Memory Configurations Table3-2 On-chip RAM Memory Locations Table3-3 On-chip ROM Memory Locations Freescale Semiconductor 3-3 Figure 3-1 Memory Maps for MSW=(X,X), CE=0, MS=0, SC=0 Figure 3-2 Memory Maps for MSW=(X,X), CE=1, MS=0, SC=0 3-4 Freescale Semiconductor Figure 3-3 Memory Maps for MSW=(0,0), CE=0 MS=1, SC=0 Figure 3-4 Memory Maps for MSW=(0,1), CE=0, MS=1, SC=0 Freescale Semiconductor 3-5 Figure 3-5 Memory Maps for MSW=(1,0), CE=0, MS=1, SC=0 Figure 3-6 Memory Maps for MSW=(0,0), CE=1, MS=1, SC=0 3-6 Freescale Semiconductor Figure 3-7 Memory Maps for MSW=(0,1), CE=1, MS=1, SC=0 Figure 3-8 Memory Maps for MSW=(1,0), CE=1, MS=1, SC=0 DSP56366 24-Bit Digital Signal Processor User Manual, Rev. 4 Freescale Semiconductor 3-7 Figure 3-9 Memory Maps for MSW=(X,X), CE=0, MS=0, SC=1 Figure 3-10 Memory Maps for MSW=(X,X), CE=1, MS=0, SC=1 3-8 Freescale Semiconductor Figure 3-11 Memory Maps for MSW=(0,0), CE=0, MS=1, SC=1 Figure 3-12 Memory Maps for MSW=(0,1), CE=0, MS=1, SC=1 Freescale Semiconductor 3-9 Figure 3-13 Memory Maps for MSW=(1,0), CE=0, MS=1, SC=1 Figure 3-14 Memory Maps for MSW=(0,0), CE=1, MS=1, SC=1 DSP56366 24-Bit Digital Signal Processor User Manual, Rev. 4 3-10 Freescale Semiconductor Figure 3-15 Memory Maps for MSW=(0,1), CE=1, MS=1, SC=1 Figure 3-16 Memory Maps for MSW=(1,0), CE=1, MS=1, SC=1 3.1.1 Reserved Memory Spaces 3.1.2 Program ROM Area Reserved for Freescale Use 3.1.3 Bootstrap ROM 3.1.4 Dynamic Memory Configuration Switching 3.1.5 External Memory Support 3.2 Internal I/O Memory Map Page Page Page Page Page Page 4 Core Configuration 4.1 Introduction 4.2 Operating Mode Register (OMR) 4.2.1 Asynchronous Bus Arbitration Enable (ABE) - Bit 13 4.2.2 Address Attribute Priority Disable (APD) - Bit 14 4.2.3 Address Tracing Enable (ATE) - Bit 15 4.2.4 Patch Enable (PEN) - Bit 23 Page 4.3 Operating Modes Table4-2 DSP56366 Operating Modes Table4-3 DSP56366 Mode Descriptions Table4-2 DSP56366 Operating Modes (continued) 4.4 Interrupt Priority Registers Table4-3 DSP56366 Mode Descriptions Table4-4 Interrupt Priority Level Bits Interrupt Priority Registers Freescale Semiconductor 4-7 Figure 4-1 Interrupt Priority Register P Figure 4-2 Interrupt Priority Register C Table4-5 Interrupt Sources Priorities Within an IPL Table4-5 Interrupt Sources Priorities Within an IPL (continued) Table4-6 DSP56366 Interrupt Vectors Table4-6 DSP56366 Interrupt Vectors (continued) 4.5 DMA Request Sources Table4-7 DMA Request Sources 4.6 PLL Initialization 4.6.1 PLL Multiplication Factor (MF0-MF11) 4.6.2 PLL Pre-Divider Factor (PD0-PD3) 4.6.3 Crystal Range Bit (XTLR) 4.6.4 XTAL Disable Bit (XTLD) 4.9 JTAG Boundary Scan Register (BSR) Table 4-9 JTAG Identification Register Configuration Table4-10 DS P56366 BSR Bit Definition Page Page Page Page 5 General Purpose Input/Output 5.1 Introduction 5.2 P rogramming Model 5.2.1 Port B Signals and Registers 5.2.2 Port C Signals and Registers 5.2.4 Port E Signals and Registers 5.2.5 Timer/Event Counter Signals 6 Host Interface (HDI08) 6.1 Introduction 6.2 HDI08 Features 6.2.1 Interface - DSP side 6.2.2 Interface - Host Side 6.3 HDI08 Host Port Signals 6.4 HDI08 Block Diagram 6.5 HDI08 DSP-Side Programmers Model DSP Peripheral Data Bus HOST Bus Core DMA Data Bus 6.5.1 Host Receive Data Register (HORX) 6.5.2 Host Transmit Data Register (HOTX) 6.5.3 Host Control Register (HCR) 6.5.3.1 HCR Host Receive Interrupt Enable (HRIE) Bit 0 6.5.3.2 HCR Host Transmit Interrupt Enable (HTIE) Bit 1 6.5.3.3 HCR Host Command Interrupt Enable (HCIE) Bit 2 6.5.3.4 HCR Host Flags 2,3 (HF2,HF3) Bits 3-4 6.5.3.5 HCR Host DMA Mode Control Bits (HDM0, HDM1, HDM2) Bits 5-7 Page 6.5.3.6 HCR Reserved Bits 8-15 6.5.4 Host Status Register (HSR) 6.5.4.1 HSR Host Receive Data Full (HRDF) Bit 0 6.5.4.2 HSR Host Transmit Data Empty (HTDE) Bit 1 6.5.4.3 HSR Host Command Pending (HCP) Bit 2 6.5.4.4 HSR Host Flags 0,1 (HF0,HF1) Bits 3-4 6.5.5 Host Base Address Register (HBAR) 6.5.5.1 HBAR Base Address (BA[10:3]) Bits 0-7 6.5.5.2 HBAR Reserved Bits 8-15 6.5.6 Host Port Control Register (HPCR) 6.5.6.1 HPCR Host GPIO Port Enable (HGEN) Bit 0 Page 6.5.6.9 HPCR Host Request Open Drain (HROD) Bit 8 6.5.6.10 HPCR Host Data Strobe Polarity (HDSP) Bit 9 6.5.6.11 HPCR Host Address Strobe Polarity (HASP) Bit 10 6.5.6.12 HPCR Host Multiplexed bus (HMUX) Bit 11 6.5.6.13 HPCR Host Dual Data Strobe (HDDS) Bit 12 6.5.7 Data direction register (HDDR) 6.5.8 Host Data Register (HDR) 6.5.9 DSP-Side Registers After Reset 6.5.10 Host Interface DSP Core Interrupts 6.6 HDI08 External Host Programmers Model 6.6.1 Interface Control Register (ICR) 6.6.1.1 ICR Receive Request Enable (RREQ) Bit 0 6.6.1.2 ICR Transmit Request Enable (TREQ) Bit 1 6.6.1.3 ICR Double Host Request (HDRQ) Bit 2 6.6.1.4 ICR Host Flag 0 (HF0) Bit 3 6.6.1.5 ICR Host Flag 1 (HF1) Bit 4 6.6.1.6 ICR Host Little Endian (HLEND) Bit 5 6.6.1.7 ICR Initialize Bit (INIT) Bit 7 6.6.2 Command Vector Register (CVR) 6.6.2.1 CVR Host Vector (HV[6:0]) Bits 06 6.6.2.2 CVR Host Command Bit (HC) Bit 7 6.6.3 Interface Status Register (ISR) 6.6.3.1 ISR Receive Data Register Full (RXDF) Bit 0 6.6.3.2 ISR Transmit Data Register Empty (TXDE) Bit 1 6.6.3.3 ISR Transmitter Ready (TRDY) Bit 2 6.6.3.4 ISR Host Flag 2 (HF2) Bit 3 6.6.3.5 ISR Host Flag 3 (HF3) Bit 4 6.6.3.6 ISR Reserved Bits 5-6 6.6.3.7 ISR Host Request (HREQ) Bit 7 6.6.4 Interrupt Vector Register (IVR) 6.6.5 Receive Byte Registers (RXH:RXM:RXL) 6.6.6 Transmit Byte Registers (TXH:TXM:TXL) 6.6.7 Host Side Registers After Reset 6.6.8 General Purpose INPUT/OUTPUT (GPIO) 6.7 Ser vicing The Host Interface 6.7.1 HDI08 Host Processor Data Transfer 6.7.2 Polling 6.7.3 Servicing Interrupts Page 7 Serial Host Interface 7.1 Introduction 7.2 Serial Host Interface Internal Architecture 7.3 SHI Clock Generator 7.4 Serial Host Interface Programming Model Serial Host Interface Programming Model AA0419 Figure 7-4 SHI Programming ModelDSP Side 7-4 Freescale Semiconductor 7.4.1 SHI Input/Output Shift Register (IOSR)Host Side 7.4.2 SHI Host Transmit Data Register (HTX)DSP Side 7.4.3 SHI Host Receive Data FIFO (HRX)DSP Side 7.4.4 SHI Slave Address Register (HSAR)DSP Side 7.4.4.1 HSAR Reserved BitsBits 19, 170 7.4.4.2 HSAR I2C Slave Address (HA[6:3], HA1)Bits 2320,18 7.4.5 SHI Clock Control Register (HCKR)DSP Side 7.4.5.1 Clock Phase and Polarity (CPHA and CPOL)Bits 10 Page 7.4.5.2 HCKR Prescaler Rate Select (HRS)Bit 2 7.4.5.3 HCKR Divider Modulus Select (HDM[7:0])Bits 103 7.4.5.4 HCKR Reserved BitsBits 2314, 11 7.4.5.5 HCKR Filter Mode (HFM[1:0]) Bits 1312 7.4.6 SHI Control/Status Register (HCSR)DSP Side 7.4.6.1 HCSR Host Enable (HEN)Bit 0 7.4.6.2 HCSR I2C/SPI Selection (HI2C)Bit 1 7.4.6.3 HCSR Serial Host Interface Mode (HM[1:0])Bits 32 7.4.6.4 HCSR I2C Clock Freeze (HCKFR)Bit 4 7.4.6.5 HCSR FIFO-Enable Control (HFIFO)Bit 5 7.4.6.6 HCSR Master Mode (HMST)Bit 6 7.4.6.7 HCSR Host-Request Enable (HRQE[1:0])Bits 87 7.4.6.8 HCSR Idle (HIDLE)Bit 9 7.4.6.9 HCSR Bus-Error Interrupt Enable (HBIE)Bit 10 7.4.6.10 HCSR Transmit-Interrupt Enable (HTIE)Bit 11 7.4.6.11 HCSR Receive Interrupt Enable (HRIE[1:0])Bits 1312 7.4.6.12 HCSR Host Transmit Underrun Error (HTUE)Bit 14 7.4.6.13 HCSR Host Transmit Data Empty (HTDE)Bit 15 7.4.6.14 HCSR Reserved BitsBits 23, 18 and 16 7.4.6.15 Host Receive FIFO Not Empty (HRNE)Bit 17 7.4.6.16 Host Receive FIFO Full (HRFF)Bit 19 7.4.6.17 Host Receive Overrun Error (HROE)Bit 20 7.5 Characteristics Of The SPI Bus 7.6 Characteristics Of The I2C Bus 7.6.1 Overview 7.6.2 I2C Data Transfer Formats 7.7 SHI Programming Considerations 7.7.1 SPI Slave Mode 7.7.2 SPI Master Mode 7.7.3 I2C Slave Mode 7.7.3.1 Receive Data in I2C Slave Mode 7.7.3.2 Transmit Data In I2C Slave Mode 7.7.4 I2C Master Mode 7.7.4.1 Receive Data in I2C Master Mode 7.7.4.2 Transmit Data In I2C Master Mode 7.7.5 SHI Operation During DSP Stop Page 8 Enhanced Serial AUDIO Interface (ESAI) 8.1 Introduction Page 8.2 E SAI Data and Control Pins 8.2.1 Serial Transmit 0 Data Pin (SDO0) 8.2.2 Serial Transmit 1 Data Pin (SDO1) 8.2.3 Serial Transmit 2/Receive 3 Data Pin (SDO2/SDI3) 8.2.4 Serial Transmit 3/Receive 2 Data Pin (SDO3/SDI2) 8.2.5 Serial Transmit 4/Receive 1 Data Pin (SDO4/SDI1) 8.2.6 Serial Transmit 5/Receive 0 Data Pin (SDO5/SDI0) 8.2.7 Receiver Serial Clock (SCKR) 8.2.8 Transmitter Serial Clock (SCKT) 8.2.9 Frame Sync for Receiver (FSR) 8.2.10 Frame Sync for Transmitter (FST) 8.2.11 High Frequency Clock for Transmitter (HCKT) 8.2.12 High Frequency Clock for Receiver (HCKR) 8.3 E SAI Programming Model 8.3.1 ESAI Transmitter Clock Control Register (TCCR) 8.3.1.1 TCCR Transmit Prescale Modulus Select (TPM7TPM0) - Bits 07 Freescale Semiconductor 8-9 Figure 8-3 ESAI Clock Generator Functional Block Diagram 8.3.1.2 TCCR Transmit Prescaler Range (TPSR) - Bit 8 Notes: 8.3.1.3 TCCR Tx Frame Rate Divider Control (TDC4TDC0) - Bits 913 Freescale Semiconductor 8-11 Figure 8-4 ESAI Frame Sync Generator Functional Block Diagram 8.3.1.4 TCCR Tx High Frequency Clock Divider (TFP3-TFP0) - Bits 1417 Table8-3 Transmitter High Frequency Clock Divider TFP3-TFP0 Divide Ratio $0 1 $1 2 $2 3 $3 4 ... ... $F 16 8.3.1.5 TCCR Transmit Clock Polarity (TCKP) - Bit 18 8.3.1.6 TCCR Transmit Frame Sync Polarity (TFSP) - Bit 19 8.3.2 ESAI Transmit Control Register (TCR) 8.3.2.1 TCR ESAI Transmit 0 Enable (TE0) - Bit 0 8.3.2.2 TCR ESAI Transmit 1 Enable (TE1) - Bit 1 8.3.2.3 TCR ESAI Transmit 2 Enable (TE2) - Bit 2 8.3.2.4 TCR ESAI Transmit 3 Enable (TE3) - Bit 3 8.3.2.5 TCR ESAI Transmit 4 Enable (TE4) - Bit 4 8.3.2.6 TCR ESAI Transmit 5 Enable (TE5) - Bit 5 8.3.2.7 TCR Transmit Shift Direction (TSHFD) - Bit 6 8.3.2.8 TCR Transmit Word Alignment Control (TWA) - Bit 7 8.3.2.9 TCR Transmit Network Mode Control (TMOD1-TMOD0) - Bits 8-9 Figure 8-6 Normal and Network Operation Freescale Semiconductor 8-17 Normal Mode Network Mode 8.3.2.10 TCR Tx Slot and Word Length Select (TSWS4-TSWS0) - Bits 10-14 Table8-5 ESAI Transmit Slot and Word Length Selection 8.3.2.11 TCR Transmit Frame Sync Length (TFSL) - Bit 15 Table8-5 ESAI Transmit Slot and Word Length Selection (continued) Figure 8-7 Frame Length Selection 8-20 Freescale Semiconductor 8.3.2.12 TCR Transmit Frame Sync Relative Timing (TFSR) - Bit 16 8.3.2.13 TCR Transmit Zero Padding Control (PADC) - Bit 17 8.3.2.14 TCR Reserved Bit - Bits 18 8.3.2.15 TCR Transmit Section Personal Reset (TPR) - Bit 19 8.3.2.16 TCR Transmit Exception Interrupt Enable (TEIE) - Bit 20 8.3.3 ESAI Receive Clock Control Register (RCCR) 8.3.3.1 RCCR Receiver Prescale Modulus Select (RPM7RPM0) - Bits 70 8.3.3.2 RCCR Receiver Prescaler Range (RPSR) - Bit 8 8.3.3.3 RCCR Rx Frame Rate Divider Control (RDC4RDC0) - Bits 913 8.3.3.4 RCCR Rx High Frequency Clock Divider (RFP3-RFP0) - Bits 14-17 8.3.3.5 RCCR Receiver Clock Polarity (RCKP) - Bit 18 8.3.3.6 RCCR Receiver Frame Sync Polarity (RFSP) - Bit 19 8.3.3.7 RCCR Receiver High Frequency Clock Polarity (RHCKP) - Bit 20 8.3.3.8 RCCR Receiver Clock Source Direction (RCKD) - Bit 21 8.3.3.9 RCCR Receiver Frame Sync Signal Direction (RFSD) - Bit 22 8.3.3.10 RCCR Receiver High Frequency Clock Direction (RHCKD) - Bit 23 8.3.4 ESAI Receive Control Register (RCR) 8.3.4.1 RCR ESAI Receiver 0 Enable (RE0) - Bit 0 8.3.4.2 RCR ESAI Receiver 1 Enable (RE1) - Bit 1 8.3.4.3 RCR ESAI Receiver 2 Enable (RE2) - Bit 2 8.3.4.4 RCR ESAI Receiver 3 Enable (RE3) - Bit 3 8.3.4.5 RCR Reserved Bits - Bits 4-5, 17-18 8.3.4.7 RCR Receiver Word Alignment Control (RWA) - Bit 7 8.3.4.8 RCR Receiver Network Mode Control (RMOD1-RMOD0) - Bits 8-9 8.3.4.9 RCR Receiver Slot and Word Select (RSWS4-RSWS0) - Bits 10-14 Table8-11 ESAI Receive Slot and Word Length Selection 8.3.4.10 RCR Receiver Frame Sync Length (RFSL) - Bit 15 8.3.4.11 RCR Receiver Frame Sync Relative Timing (RFSR) - Bit 16 8.3.4.12 RCR Receiver Section Personal Reset (RPR) - Bit 19 8.3.4.13 RCR Receive Exception Interrupt Enable (REIE) - Bit 20 8.3.4.14 RCR Receive Even Slot Data Interrupt Enable (REDIE) - Bit 21 8.3.5 ESAI Common Control Register (SAICR) 8.3.5.1 SAICR Serial Output Flag 0 (OF0) - Bit 0 8.3.5.2 SAICR Serial Output Flag 1 (OF1) - Bit 1 8.3.5.3 SAICR Serial Output Flag 2 (OF2) - Bit 2 8.3.5.4 SAICR Reserved Bits - Bits 3-5, 9-23 8.3.5.5 SAICR Synchronous Mode Selection (SYN) - Bit 6 8.3.5.6 SAICR Transmit External Buffer Enable (TEBE) - Bit 7 8.3.5.7 SAICR Alignment Control (ALC) - Bit 8 8-34 Freescale Semiconductor Figure 8-11 SAICR SYN Bit Operation 8.3.6 ESAI Status Register (SAISR) 8.3.6.1 SAISR Serial Input Flag 0 (IF0) - Bit 0 8.3.6.2 SAISR Serial Input Flag 1 (IF1) - Bit 1 8.3.6.3 SAISR Serial Input Flag 2 (IF2) - Bit 2 8.3.6.4 SAISR Reserved Bits - Bits 3-5, 11-12, 18-23 8.3.6.5 SAISR Receive Frame Sync Flag (RFS) - Bit 6 8.3.6.6 SAISR Receiver Overrun Error Flag (ROE) - Bit 7 8.3.6.7 SAISR Receive Data Register Full (RDF) - Bit 8 8.3.6.8 SAISR Receive Even-Data Register Full (REDF) - Bit 9 8.3.6.9 SAISR Receive Odd-Data Register Full (RODF) - Bit 10 8.3.6.10 SAISR Transmit Frame Sync Flag (TFS) - Bit 13 8.3.6.11 SAISR Transmit Underrun Error Flag (TUE) - Bit 14 8.3.6.12 SAISR Transmit Data Register Empty (TDE) - Bit 15 8.3.6.13 SAISR Transmit Even-Data Register Empty (TEDE) - Bit 16 8.3.6.14 SAISR Transmit Odd-Data Register Empty (TODE) - Bit 17 8-38 Freescale Semiconductor Figure 8-13 ESAI Data Path Programming Model ([R/T]SHFD=0) (a) Receive Registers (b) Transmit Registers Figure 8-14 ESAI Data Path Programming Model ([R/T]SHFD=1) Freescale Semiconductor 8-39 (a) Receive Registers (b) Transmit Registers 8.3.7 ESAI Receive Shift Registers 8.3.8 ESAI Receive Data Registers (RX3, RX2, RX1, RX0) 8.3.9 ESAI Transmit Shift Registers 8.3.10 ESAI Transmit Data Registers (TX5, TX4, TX3, TX2,TX1,TX0) 8.3.11 ESAI Time Slot Register (TSR) Page 8.3.13 Receive Slot Mask Registers (RSMA, RSMB) 8.4 Operating Modes 8.4.1 ESAI After Reset 8.4.2 ESAI Initialization 8.4.3 ESAI Interrupt Requests 8.4.4 Operating Modes Normal, Network, and On-Demand 8.4.4.1 Normal/Network/On-Demand Mode Selection 8.4.4.2 Synchronous/Asynchronous Operating Modes 8.4.4.3 Frame Sync Selection 8.4.4.4 Shift Direction Selection 8.4.5 Serial I/O Flags 8.5 GPIO - Pins and Registers 8.5.1 Port C Control Register (PCRC) 8.5.2 Port C Direction Register (PRRC) 8.5.3 Port C Data register (PDRC) 8.6 E SAI Initialization Examples 8.6.1 Initializing the ESAI Using Individual Reset 8.6.2 Initializing Just the ESAI Transmitter Section 8.6.3 Initializing Just the ESAI Receiver Section 9 Enhanced Serial Audio Interface 1 (ESAI_1) 9.1 Introduction Clock / Frame Sync Generators and Control Logic 9.2 ESAI_1 Data and Control Pins 9.2.1 Serial Transmit 0 Data Pin (SDO0_1) 9.2.2 Serial Transmit 1 Data Pin (SDO1_1) 9.2.3 Serial Transmit 2/Receive 3 Data Pin (SDO2_1/SDI3_1) 9.2.4 Serial Transmit 3/Receive 2 Data Pin (SDO3_1/SDI2_1) 9.3 E SAI_1 Programming Model 9.3.1 ESAI_1 Multiplex Control Register (EMUXR) 9.3.2 ESAI_1 Transmitter Clock Control Register (TCCR_1) 9.3.2.1 TCCR_1 Tx High Freq. Clock Divider (TFP3-TFP0) - Bits 1417 9.3.2.2 TCCR_1 Tx High Freq. Clock Polarity (THCKP) - Bit 20 9.3.2.3 TCCR_1 Tx High Freq. Clock Direction (THCKD) - Bit 23 ESAI_1 Programming Model Figure 9-4 ESAI_1 Clock Generator Functional Block Diagram Freescale Semiconductor 9-7 ESAI_1 Programming Model 9-8 Freescale Semiconductor Figure 9-5 ESAI_1 Frame Sync Generator Functional Block Diagram 9.3.3 ESAI_1 Transmit Control Register (TCR_1) Figure 9-6 TCR_1 Register Hardware and software reset clear all the bits in the TCR_1 register. 9.3.4 ESAI_1 Receive Clock Control Register (RCCR_1) 9.3.4.1 RCCR_1 Rx High Freq. Clock Divider (RFP3-RFP0) - Bits 1417 9.3.4.2 RCCR_1 Rx High Freq. Clock Polarity (RHCKP) - Bit 20 9.3.4.3 RCCR_1 Rx High Freq. Clock Direction (RHCKD) - Bit 23 9.3.5 ESAI_1 Receive Control Register (RCR_1) 9.3.6 ESAI_1 Common Control Register (SAICR_1) 9.3.7 ESAI_1 Status Register (SAISR_1) 9.3.8 ESAI_1 Receive Shift Registers 9.3.9 ESAI_1 Receive Data Registers 9.3.10 ESAI_1 Transmit Shift Registers 9.3.11 ESAI_1 Transmit Data Registers 9.3.12 ESAI_1 Time Slot Register (TSR_1) 9.3.13 Transmit Slot Mask Registers (TSMA_1, TSMB_1) 9.3.14 Receive Slot Mask Registers (RSMA_1, RSMB_1) 9.4 Operating Modes 9.4.1 ESAI_1 After Reset 9.5 GPIO - Pins and Registers 9.5.1 Port E Control Register (PCRE) 9.5.2 Port E Direction Register (PRRE) 9.5.3 Port E Data register (PDRE) Page Page 10 Digital Audio Transmitter 10.1 Introduction 10.2 DAX Signals 10.3 DAX Functional Overview 10.4 DAX Programming Model 10.5 DAX Internal Architecture Figure 10-2 DAX Programming Model Table10-1 DAX Interrupt Vectors Table10-2 DAX Interrupt Priority 10.5.1 DAX Audio Data Register (XADR) 10.5.2 DAX Audio Data Buffers (XADBUFA / XADBUFB) 10.5.3 DAX Audio Data Shift Register (XADSR) 10.5.4 DAX Non-Audio Data Register (XNADR) 10.5.4.1 DAX Channel A Validity (XVA)Bit 10 10.5.5 DAX Non-Audio Data Buffer (XNADBUF) 10.5.6 DAX Control Register (XCTR) 10.5.6.1 Audio Data Register Empty Interrupt Enable (XDIE)Bit 0 10.5.6.2 Underrun Error Interrupt Enable (XUIE)Bit 1 10.5.6.3 Block Transferred Interrupt Enable (XBIE)Bit 2 10.5.7 DAX Status Register (XSTR) 10.5.7.1 DAX Audio Data Register Empty (XADE)Bit 0 10.5.7.2 DAX Transmit Underrun Error Flag (XAUR)Bit 1 10.5.7.3 DAX Block Transfer Flag (XBLK)Bit 2 10.5.7.4 XSTR Reserved BitsBits 323 10.5.8 DAX Parity Generator (PRTYG) 10.5.9 DAX Biphase Encoder 10.5.10 DAX Preamble Generator 10.5.11 DAX Clock Multiplexer 10.5.12 DAX State Machine 10.6 DAX Programming Considerations 10.6.1 Initiating A Transmit Session 10.6.2 Audio Data Register Empty Interrupt Handling 10.6.3 Block Transferred Interrupt Handling 10.6.4 DAX operation with DMA 10.6.5 DAX Operation During Stop 10.7 GPIO (PORT D) - Pins and Registers 10.7.1 Port D Control Register (PCRD) 10.7.2 Port D Direction Register (PRRD) 10.7.3 Port D Data Register (PDRD) 11 Timer/ Event Counter 11.1 Introduction 11.2 Timer/Event Counter Architecture 11.2.1 Timer/Event Counter Block Diagram 11.2.2 Individual Timer Block Diagram 11.3 Timer/Event Counter Programming Model Page 11.3.1 Prescaler Counter 11.3.2 Timer Prescaler Load Register (TPLR) 11.3.2.1 TPLR Prescaler Preload Value PL[20:0] Bits 200 11.3.2.2 TPLR Prescaler Source PS[1:0] Bits 22-21 11.3.2.3 TPLR Reserved Bit 23 11.3.3 Timer Prescaler Count Register (TPCR) 11.3.3.1 TPCR Prescaler Counter Value PC[20:0] Bits 200 11.3.3.2 TPCR Reserved Bits 2321 11.3.4 Timer Control/Status Register (TCSR) 11.3.4.1 TCSR Timer Enable (TE) Bit 0 11.3.4.2 TCSR Timer Overflow Interrupt Enable (TOIE) Bit 1 11.3.4.3 TCSR Timer Compare Interrupt Enable (TCIE) Bit 2 11.3.4.4 TCSR Timer Control (TC[3:0]) Bits 47 Table11-2 Timer Control Bits for Timer 0 Table11-3 Timer Control Bits for Timers 1 and 2 11.3.4.5 TCSR Inverter (INV) Bit 8 The INV bit is cleared by the hardware RESET signal or the software RESET instruction. Table1 1-4 Inverter (INV) Bit Operation inverted and 11.3.4.6 TCSR Timer Reload Mode (TRM) Bit 9 11.3.4.7 TCSR Direction (DIR) Bit 11 11.3.4.8 TCSR Data Input (DI) Bit 12 11.3.4.9 TCSR Data Output (DO) Bit 13 11.3.4.10 TCSR Prescaler Clock Enable (PCE) Bit 15 11.3.4.11 TCSR Timer Overflow Flag (TOF) Bit 20 11.3.4.12 TCSR Timer Compare Flag (TCF) Bit 21 11.3.4.13 TCSR Reserved Bits (Bits 3, 10, 14, 16-19, 22, 23) 11.3.5 Timer Load Register (TLR) 11.4 Timer Modes of Operation 11.4.1 Timer Modes 11.4.1.1 Timer GPIO (Mode 0) 11.4.1.2 Timer Pulse (Mode 1) 11.4.1.3 Timer Toggle (Mode 2) 11.4.1.4 Timer Event Counter (Mode 3) 11.4.2 Signal Measurement Modes 11.4.2.1 Measurement Accuracy 11.4.2.2 Measurement Input Width (Mode 4) 11.4.2.3 Measurement Input Period (Mode 5) 11.4.2.4 Measurement Capture (Mode 6) 11.4.3 Pulse Width Modulation (PWM, Mode 7) 11.4.4 Watchdog Modes 11.4.4.1 Watchdog Pulse (Mode 9) 11.4.4.2 Watchdog Toggle (Mode 10) 11.4.5 Reserved Modes 11.4.6 Special Cases 11.4.6.1 Timer Behavior during Wait 11.4.6.2 Timer Behavior during Stop 11.4.7 DMA Trigger Page Appendix A Bootstrap ROM Contents A.1 DSP56366 Bootstrap Program Page Page Page Page Page Page Page Page Page Page Page Page Page Appendix B Equates Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Appendix C JTAG BSDL Page Page Page Page Page Page Page Appendix D Programmers Reference D.1 Introduction D.2 Internal I/O Memory Map TableD-1. Internal I/O Memory Map Page Page Page Page Page D.3 Interrupt Vector Addresses TableD-2. DSP56366 Interrupt Vectors TableD-2. DSP56366 Interrupt Vectors (continued) D.4 Interrupt Source Priorities (within an IPL) TableD-3. Int errupt Sources Priorities Within an IPL TableD -3. Interrupt Sources Priorities Within an IPL (continued) D-12 Freescale Semiconductor D.5 Host InterfaceQuick Reference TableD-4. HDI08 Programming Model Freescale Semiconductor D-13 D-14 Freescale Semiconductor Freescale Semiconductor D-15 D.6 Programming Sheets Figure D-1. Status Register (SR) : Central Processor * * * Figure D-2. Operating Mode Register (OMR) Central Processor * CENTRAL PROCESSOR 9 IRQC Mode Figure D-3. Interrupt Priority RegisterCore (IPRC) CENTRAL PROCESSOR Figure D-4. Interrupt Priority Register Peripherals (IPRP) Figure D-5. Phase Lock Loop Control Register (PCTL) D-20 Freescale Semiconductor Application: Date: Programmer: Sheet 5 of 5 PLL 0 = 50% Duty Cycle Clock 1 = Pin Held In High State Figure D-6. Host Receive and Host Transmit Data Registers HOST (HDI08) DSP Side Figure D-7. Host Control and Status Registers HOST 765 4 32 10 15 DSP Side 8654321015 (HDI08) HOST (HDI08) Host Base Address Register (HBAR) X:$FFFFC5 Reset = $80 8 1514131211109876543210 Host Chip Select Polarity 0 = HCS Active Low HOST (HDI08) Processor Side 765 4 3 21 0 HOST (HDI08) Processor Side Figure D-11. Host Receive and Transmit Byte Registers HOST (HDI08) Receive Byte Registers Transmit Byte Registers Processor Side Page SHI Figure D-14. SHI Host Control/Status Register Sheet 3 of 3 Freescale Semiconductor D-29 SHI * SHI Control/Status X:$FFFF91 Reset = $008200 Register (HCSR) Figure D-15. ESAI Transmit Clock Control Register TCCR - ESAI Transmit Clock Control Register X: $FFFFB6 Reset: $000000 TCR - ESAI Transmit Control Register X: $FFFFB5 Reset: $000000 Figure D-16. ESAI Transmit Control Register Application: D ESAI X: $FFFFB8 Reset: $000000 RCCR - ESAI Receive Clock Control Register Figure D-18. ESAI Receive Control Register Freescale Semiconductor D-33 ESAI t D X: $FFFFB7 Reset: $000000 RCR - ESAI Receive Control Register SAICR - ESAI Common Control Register X: $FFFFB4 Reset: $000000 Figure D-19. ESAI Common Control Register SAISR - ESAI Status Register X: $FFFFB3 Reset $000000 Figure D-20. ESAI Status Register EMUXR - ESAI_1 Multiplex Control Register Figure D-21. ESAI_1 Multiplex Control Register D-36 Freescale Semiconductor Y: $FFFFAF Reset: $000000 EMUXR ESAI/ESAI_1 Pin Selection TCCR_1 - ESAI_1 Transmit Clock Control Register Y: $FFFF96 Reset: $000000 TCR_1 - ESAI_1 Transmit Control Register Y: $FFFF95 Reset: $000000 Figure D-23. ESAI_1 Transmit Control Register Application: D RCCR_1 - ESAI_1 Receive Clock Control Register Y: $FFFF98 Reset: $000000 Figure D-24. ESAI_1 Receive Clock Control Register RCR_1 - ESAI_1 Receive Control Register Figure D-25. ESAI_1 Receive Control Register D-40 Freescale Semiconductor Y: $FFFF97 Reset: $000000 Application: SAICR_1 - ESAI_1 Common Control Register Y: $FFFF94 Reset: $000000 Figure D-26. ESAI_1 Common Control Register SAISR_1 - ESAI_1 Status Register Y: $FFFF93 Reset $000000 Figure D-27. ESAI_1 Status Register Page Page 0 * 0 Figure D-31. Timer Control/Status Register D-46 Freescale Semiconductor Application: Date: Programmer: 1514131211109876543210 19 18 17 1623 22 21 20 Page Figure D-33. GPIO Port B D-48 Freescale Semiconductor Application: Date: Programmer: GPIO 1514131211109876543210 Port B (HDI08) Page Page GPIO Page Index Numerics A B C E F G H I J L M O P R S T V X Y