Cypress CY7C602xx 16.2.10 P0.1/CLKOUT Configuration, 7. P0.1/CLKOUT Configuration P01CR 0x06 R/W

Page 39
16.2.10 P0.1/CLKOUT Configuration

CY7C601xx, CY7C602xx

16.2.10 P0.1/CLKOUT Configuration

Table 16-7. P0.1/CLKOUT Configuration (P01CR) [0x06] R/W]

Bit #

7

6

5

4

3

2

1

0

Field

CLK Output

Int Enable

Int Act Low

TTL Thresh

High Sink

Open Drain

Pull up Enable

Output Enable

Read/Write

R/W

R/W

R/W

R/W

R/W

R/W

R/W

R/W

Default

0

0

0

0

0

0

0

0

 

 

 

 

 

 

 

 

 

This pin is shared between the P0.1 GPIO use and the CLKOUT pin for the external crystal oscillator. When the external oscillator is enabled the settings of this register are ignored. When CLK output is set, the internally selected clock is sent out onto P0.1CLKOUT pin.

The alternate function of the pin as the CLKOUT is only available in the CY7C601xx. When the external oscillator is enabled (the XOSC Enable bit of the CLKIOCR Register is set—Table12-4), the GPIO function of the pin is disabled.

The 50 mA sink drive capability is only available in the CY7C601xx. In the CY7C602xx, only 8 mA sink drive capability is available on this pin regardless of the setting of the High Sink bit.

Bit 7: CLK Output

0 = The clock output is disabled.

1 = The clock selected by the CLK Select field (Bit [1:0] of the CLKIOCR Register—Table12-4) is driven out to the pin.

16.2.11 P0.2/INT0–P0.4/INT2 Configuration

Table 16-8. P0.2/INT0–P0.4/INT2 Configuration (P02CR–P04CR) [0x07–0x09] [R/W]

Bit #

7

 

6

5

4

3

2

1

0

Field

 

Reserved

Int Act Low

TTL Thresh

Reserved

Open Drain

Pull up Enable

Output Enable

Read/Write

–

 

–

R/W

R/W

–

R/W

R/W

R/W

Default

0

 

0

0

0

0

0

0

0

 

 

 

 

 

 

 

 

 

 

These registers control the operation of pins P0.2–P0.4 respectively. These pins are shared between the P0.2–P0.4 GPIOs and the INT0–INT2. The INT0–INT2 interrupts are different from all other GPIO interrupts. These pins are connected directly to the interrupt controller to provide three edge-sensitive interrupts with independent interrupt vectors. These interrupts occur on a rising edge when Int Act Low is clear and on a falling edge when Int Act Low is set. These pins are enabled as interrupt sources in the interrupt controller registers (Table 19-8and Table 19-6).

To use these pins as interrupt inputs, configure them as inputs by clearing the corresponding Output Enable. If the INT0–INT2 pins are configured as outputs with interrupts enabled, firmware generates an interrupt by writing the appropriate value to the P0.2, P0.3, and P0.4 data bits in the P0 Data Register.

Regardless of whether the pins are used as Interrupt or GPIO pins the Int Enable, Int Act Low, TTL Threshold, Open Drain, and Pull up Enable bits control the behavior of the pin.

The P0.2/INT0–P0.4/INT2 pins are individually configured with the P02CR (0x07), P03CR (0x08), and P04CR (0x09) respec- tively.

Note Changing the state of the Int Act Low bit generates an unintentional interrupt. When configuring these interrupt sources, follow this procedure:

1.Disable interrupt source

2.Configure interrupt source

3.Clear any pending interrupts from the source

4.Enable interrupt source

Document 38-16016 Rev. *E

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Contents Cypress Semiconductor Corporation 1. Features2. Logic Block Diagram CY7C601xx, CY7C602xx3. Applications 4. Introduction5. Conventions 24-Pin PDIP Figure 6-1. Package Configurations Top View6. Pinouts CY7C60223Name CY7C601xx, CY7C602xx6.1 Pin Assignments Table 6-1. Pin AssignmentsTable 6-1. Pin Assignments continued Addr Default7. Register Summary Table 7-1. enCoRe II LV Register SummaryTable 7-1. enCoRe II LV Register Summary continued Table 8-1. CPU Registers and Register Name 8. CPU Architecture9. CPU Registers 9.1 Flags RegisterTable 9-3. CPU X Register CPUX 9.1.1 Accumulator RegisterTable 9-2. CPU Accumulator Register CPUA 9.1.2 Index RegisterOpcode 9.2 Addressing Modes9.2.1 Source Immediate Table 9-7. Source Immediate9.2.6 Destination Direct Source Immediate 9.2.5 Destination IndexedTable 9-11. Destination Indexed Example9.2.10 Destination Indirect Post Increment 10. Instruction Set Summary9.2.9 Source Indirect Post Increment Table 9-15. Source Indirect Post IncrementFlags 0x1FFF 11. Memory Organization11.1 Flash Program Memory Organization Figure 11-1. Program Memory Space with Interrupt Vector TableFigure 11-2. Data Memory Organization 11.2 Data Memory Organization11.3 Flash 11.4 SROMVariable Name 11.5.1 SWBootReset Function11.5 SROM Function Descriptions Table 11-2. SROM Function Parameters11.5.4 EraseBlock Function Settings11.5.3 WriteBlock Function Table 11-5. WriteBlock ParametersTable 11-10. Table Read Parameters Table 11-8. ProtectBlock Parameters11.5.6 EraseAll Function 11.5.7 TableRead FunctionPage 19 of 11.6 SROM Table Read Descriptioneg ti Gain value for the register at location 0x38 3.3V = Table 12-1. Oscillator Trim Values vs. Voltage Settings12. Clocking 12.1 Trim Values for the IOSCTR Register12.2.1 CPU Clock 12.2 Clock Architecture DescriptionTable 12-3. OSC Control 0 OSCCR0 0x1E0 R/W Figure 12-1. CPU Clock Block DiagramTable 12-2. CPU Clock Configuration CPUCLKCR 0x30 R/W Bit 71 ReservedTable 12-3. OSC Control 0 OSCCR0 0x1E0 R/W continued Sleep TimerSleep Timer Clock CPU when InternalTable 12-4. Clock IO Configuration CLKIOCR 0x32 R/W 12.2.2 Interval Timer Clock ITMRCLKBit 75 Reserved Figure 12-2. Programmable Interval Timer Block Diagram 12.2.3 Timer Capture Clock TCAPCLKFigure 12-3. Timer Capture Block Diagram Page 27 of Table 12-5. Timer Clock Configuration TMRCLKCR 0x31 R/WBit 40 Gain XGM Setting12.2.4 Internal Clock Trim Table 12-6. IOSC Trim IOSCTR 0x34 R/W12.3 CPU Clock During Sleep Mode 12.2.6 LPOSC TrimTable 12-8. LPOSC Trim LPOSCTR 0x36 R/W Bit 5 WDRS 13. ResetTable 13-1. System Status and Control Register CPUSCR 0xFF R/W Bit 7 GIES14. Sleep Mode 13.1 Power On Reset13.2 Watchdog Timer Reset Table 13-2. Reset Watchdog Timer RESWDT 0xE3 WFigure 14-1. Sleep Timing 14.1.1 Low Power in Sleep Mode14.1 Sleep Sequence CPUCLK IOW SLEEP BRQ BRA PDFigure 14-2. Wakeup Timing 14.2 Wakeup SequenceBit 20 VM20 15. Low Voltage Detect ControlTable 15-1. Low Voltage Control Register LVDCR 0x1E3 R/W Bit 76 Reserved Bit 54 PORLEV10Bit 72 Reserved Bit 1 LVD 15.1 POR Compare State15.2 ECO Trim Register Table 15-2. Voltage Monitor Comparators Register VLTCMP 0x1E4 RTable 16-1. P0 Data Register P0DATA0x00 R/W 16. General Purpose IO Ports16.1 Port Data Registers 16.1.1 P0 DataTable 16-3. P2 Data Register P2DATA 0x02 R/W 16.2 GPIO Port Configuration16.2.1 Int Enable 16.1.3 P2 Data16.2.9 P0.0/CLKIN Configuration 16.2.7 Output Enable16.2.6 Pull Up Enable Figure 16-1. GPIO Block Diagram16.2.10 P0.1/CLKOUT Configuration Table 16-7. P0.1/CLKOUT Configuration P01CR 0x06 R/W16.2.11 P0.2/INT0-P0.4/INT2 Configuration 16.2.14 P1.0 Configuration 16.2.12 P0.5/TIO0-P0.6/TIO1 Configuration16.2.13 P0.7 Configuration Table 16-10. P0.7 Configuration P07CR 0x0C R/WTable 16-13. P1.2 Configuration P12CR 0x0F R/W 16.2.15 P1.1 ConfigurationTable 16-12. P1.1 Configuration P11CR 0x0E R/W 16.2.16 P1.2 ConfigurationTable 16-16. P1.7 Configuration P17CR 0x14 R/W 16.2.18 P1.4-P1.6 Configuration SCLK, SMOSI, SMISOTable 16-15. P1.4-P1.6 Configuration P14CR-P16CR 0x11-0x13 R/W 16.2.19 P1.7 ConfigurationTable 16-19. P4 Configuration P4CR 0x17 R/W 16.2.21 P3 ConfigurationTable 16-18. P3 Configuration P3CR 0x16 R/W 16.2.22 P4 Configuration17. Serial Peripheral Interface SPI Figure 17-1. SPI Block DiagramTable 17-1. SPI Data Register SPIDATA 0x3C R/W 17.2 SPI Configure RegisterTable 17-2. SPI Configure Register SPICR 0x3D R/W 17.1 SPI Data RegisterCPOL Table 17-3. SPI Mode Timing vs. LSB First, CPOL, and CPHADiagram CPHATable 18-1. Free Running Timer Low Order Byte FRTMRL 0x20 R/W 18. Timer Registers17.3 SPI Interface Pins Figure 18-1. 16-Bit Free Running Counter Block Diagram18.1.2 Time Capture Table 18-2. Free Running Timer High Order Byte FRTMRH 0x21 R/WFigure 18-2. Time Capture Block Diagram Table 18-3. Timer Configuration TMRCR 0x2A R/WTable 18-7. Timer Capture 0 Falling TCAP0F 0x24 R/W Table 18-4. Capture Interrupt Enable TCAPINTE 0x2B R/WTable 18-5. Timer Capture 0 Rising TCAP0R 0x22 R/W Table 18-6. Timer Capture 1 Rising TCAP1R 0x23 R/WTable 18-9. Capture Interrupt Status TCAPINTS 0x2C R/W Table 18-8. Timer Capture 1 Falling TCAP1F 0x25 R/W18.1.3 Programmable Interval Timer Table 18-10. Programmable Interval Timer Low PITMRL 0x26 RTable 18-11. Programmable Interval Timer High PITMRH 0x27 R Table 18-12. Programmable Interval Reload Low PIRL 0x28 R/WTable 18-13. Programmable Interval Reload High PIRH 0x29 R/W Page 52 of Figure 18-3. Timer Functional Sequence DiagramFigure 18-5. Memory Mapped Registers Read and Write Timing Diagram Figure 18-4. 16-Bit Free Running Counter Loading Timing DiagramTable 19-1. Interrupt Priorities, Address, and Name Figure 19-1. Interrupt Controller Block Diagram19. Interrupt Controller 19.1 Architectural DescriptionTable 19-2. Interrupt Clear 0 INTCLR0 0xDA R/W 19.2 Interrupt Processing19.3 Interrupt Latency 19.4 Interrupt RegistersTable 19-5. Interrupt Mask 3 INTMSK3 0xDE R/W Table 19-3. Interrupt Clear 1 INTCLR1 0xDB R/WInterrupt Clear 2 INTCLR2 0xDC R/W 19.4.2 Interrupt Mask RegistersTable 19-6. Interrupt Mask 2 INTMSK2 0xDF R/W Table 19-7. Interrupt Mask 1 INTMSK1 0xE1 R/WPage 57 of Table 19-8. Interrupt Mask 0 INTMSK0 0xE0 R/W 19.4.3 Interrupt Vector Clear RegisterTable 19-9. Interrupt Vector Clear Register INTVC 0xE2 R/W Conditions 20.1 DC Characteristics20. Absolute Maximum Ratings ParameterFigure 20-1. Clock Timing 20.2 AC CharacteristicsClock SPI TimingMOSI MISO Figure 20-2. GPIO Timing DiagramSCK CPOL=0 SCK CPOL=1MOSI MISO MSB MOSIMISO SS SCK CPOL=0 SCK CPOL=1MOSI MSB 21. Ordering Information22. Package Handling SCK CPOL=0 SCK CPOL=13. DIMENSIONS IN INCHES 23. Package DiagramsFigure 23-1. 24-Pin 300-Mil SOIC S13 Figure 23-2. 24-Pin 300-Mil PDIP P13Figure 23-3. 24-Pin QSOP O241 Figure 23-4. 28-Pin 5.3 mm Shrunk Small Outline Package O28Page 65 of Figure 23-5. 40-Pin 600-Mil Molded DIP P17 Figure 23-6. 48-Pin Shrunk Small Outline Package O48Page 66 of Submission 24. Document History PageDocument Number Orig. ofProducts Sales, Solutions, and Legal InformationPSoC Solutions Worldwide Sales and Design Support
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