POR Compare State, ECO Trim Register | Cypress CY7C602xx, CY7C601xx

15.1 POR Compare State

CY7C601xx, CY7C602xx

15.1 POR Compare State

Table 15-2. Voltage Monitor Comparators Register (VLTCMP) [0x1E4] [R]

Bit #	7	6	5		4	3	2	1	0
Field				Reserved				LVD	PPOR
Read/Write	–	–	–		–	–	–	R	R
Default	0	0	0		0	0	0	0	0

This read-only register allows reading the current state of the LVD and PPOR comparators.

Bit [7:2]: Reserved

Bit 1: LVD

This bit is set to indicate that the LVD comparator has tripped, indicating that the supply voltage has gone below the trip point set by VM[2:0] (See Table 15-1).

0 = No low-voltage-detect event 1= A low-voltage-detect has tripped Bit 0: PPOR

This bit is set to indicate that the PPOR comparator has tripped, indicating that the supply voltage is below the trip point set by PORLEV[1:0].

0 = No precision-power-on-reset event

1= A precision-power-on-reset event has occurred

Note This register exists in the second bank of IO space. This requires setting the XIO bit in the CPU flags register.

15.2 ECO Trim Register

Table 15-3. ECO (ECO_TR) [0x1EB] [R/W]

Bit #	7	6	5	4	3		2	1	0
Field	Sleep Duty Cycle [1:0]					Reserved
Read/Write	R/W	R/W	–	–	–		–	–	–
Default	0	0	0	0	0		0	0	0

This register controls the ratios (in numbers of 32 kHz clock periods) of “on” time versus “off” time for LVD and POR detection circuit.

Bit [7:6]: Sleep Duty Cycle [1:0]

0 0 = 1/128 periods of the Internal 32 kHz low speed oscillator.

0 1 = 1/512 periods of the Internal 32 kHz low speed oscillator.

1 0 = 1/32 periods of the Internal 32 kHz low speed oscillator.

1 1 = 1/8 periods of the Internal 32 kHz low speed oscillator.

Note This register is only accessed in the second bank of IO space. This requires setting the XIO bit in the CPU flags register.

Document 38-16016 Rev. *E

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Cypress CY7C602xx, CY7C601xx POR Compare State, ECO Trim Register, 2. Voltage Monitor Comparators Register VLTCMP 0x1E4 R

Contents

Cypress Semiconductor Corporation 1. Features2. Logic Block Diagram CY7C601xx, CY7C602xx 5. Conventions 3. Applications4. Introduction 24-Pin PDIP Figure 6-1. Package Configurations Top View6. Pinouts CY7C60223 Name CY7C601xx, CY7C602xx6.1 Pin Assignments Table 6-1. Pin Assignments Table 6-1. Pin Assignments continued Addr Default7. Register Summary Table 7-1. enCoRe II LV Register Summary Table 7-1. enCoRe II LV Register Summary continued Table 8-1. CPU Registers and Register Name 8. CPU Architecture9. CPU Registers 9.1 Flags Register Table 9-3. CPU X Register CPUX 9.1.1 Accumulator RegisterTable 9-2. CPU Accumulator Register CPUA 9.1.2 Index Register Opcode 9.2 Addressing Modes9.2.1 Source Immediate Table 9-7. Source Immediate 9.2.6 Destination Direct Source Immediate 9.2.5 Destination IndexedTable 9-11. Destination Indexed Example 9.2.10 Destination Indirect Post Increment 10. Instruction Set Summary9.2.9 Source Indirect Post Increment Table 9-15. Source Indirect Post Increment Flags 0x1FFF 11. Memory Organization11.1 Flash Program Memory Organization Figure 11-1. Program Memory Space with Interrupt Vector Table Figure 11-2. Data Memory Organization 11.2 Data Memory Organization11.3 Flash 11.4 SROM Variable Name 11.5.1 SWBootReset Function11.5 SROM Function Descriptions Table 11-2. SROM Function Parameters 11.5.4 EraseBlock Function Settings11.5.3 WriteBlock Function Table 11-5. WriteBlock Parameters Table 11-10. Table Read Parameters Table 11-8. ProtectBlock Parameters11.5.6 EraseAll Function 11.5.7 TableRead Function Page 19 of 11.6 SROM Table Read Description eg 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 Register 12.2.1 CPU Clock 12.2 Clock Architecture Description Table 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 Reserved Table 12-3. OSC Control 0 OSCCR0 0x1E0 R/W continued Sleep TimerSleep Timer Clock CPU when Internal Bit 75 Reserved Table 12-4. Clock IO Configuration CLKIOCR 0x32 R/W12.2.2 Interval Timer Clock ITMRCLK Figure 12-3. Timer Capture Block Diagram Figure 12-2. Programmable Interval Timer Block Diagram12.2.3 Timer Capture Clock TCAPCLK Page 27 of Table 12-5. Timer Clock Configuration TMRCLKCR 0x31 R/W Bit 40 Gain XGM Setting12.2.4 Internal Clock Trim Table 12-6. IOSC Trim IOSCTR 0x34 R/W Table 12-8. LPOSC Trim LPOSCTR 0x36 R/W 12.3 CPU Clock During Sleep Mode12.2.6 LPOSC Trim Bit 5 WDRS 13. ResetTable 13-1. System Status and Control Register CPUSCR 0xFF R/W Bit 7 GIES 14. Sleep Mode 13.1 Power On Reset13.2 Watchdog Timer Reset Table 13-2. Reset Watchdog Timer RESWDT 0xE3 W Figure 14-1. Sleep Timing 14.1.1 Low Power in Sleep Mode14.1 Sleep Sequence CPUCLK IOW SLEEP BRQ BRA PD Figure 14-2. Wakeup Timing 14.2 Wakeup Sequence Bit 20 VM20 15. Low Voltage Detect ControlTable 15-1. Low Voltage Control Register LVDCR 0x1E3 R/W Bit 76 Reserved Bit 54 PORLEV10 Bit 72 Reserved Bit 1 LVD 15.1 POR Compare State15.2 ECO Trim Register Table 15-2. Voltage Monitor Comparators Register VLTCMP 0x1E4 R Table 16-1. P0 Data Register P0DATA0x00 R/W 16. General Purpose IO Ports16.1 Port Data Registers 16.1.1 P0 Data Table 16-3. P2 Data Register P2DATA 0x02 R/W 16.2 GPIO Port Configuration16.2.1 Int Enable 16.1.3 P2 Data 16.2.9 P0.0/CLKIN Configuration 16.2.7 Output Enable16.2.6 Pull Up Enable Figure 16-1. GPIO Block Diagram 16.2.11 P0.2/INT0-P0.4/INT2 Configuration 16.2.10 P0.1/CLKOUT ConfigurationTable 16-7. P0.1/CLKOUT Configuration P01CR 0x06 R/W 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/W Table 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 Configuration Table 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 Configuration Table 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 Configuration 17. Serial Peripheral Interface SPI Figure 17-1. SPI Block Diagram Table 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 Register CPOL Table 17-3. SPI Mode Timing vs. LSB First, CPOL, and CPHADiagram CPHA Table 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 Diagram 18.1.2 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/W Table 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/W Table 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 R Table 18-13. Programmable Interval Reload High PIRH 0x29 R/W Table 18-11. Programmable Interval Timer High PITMRH 0x27 RTable 18-12. Programmable Interval Reload Low PIRL 0x28 R/W Page 52 of Figure 18-3. Timer Functional Sequence Diagram Figure 18-5. Memory Mapped Registers Read and Write Timing Diagram Figure 18-4. 16-Bit Free Running Counter Loading Timing Diagram Table 19-1. Interrupt Priorities, Address, and Name Figure 19-1. Interrupt Controller Block Diagram19. Interrupt Controller 19.1 Architectural Description Table 19-2. Interrupt Clear 0 INTCLR0 0xDA R/W 19.2 Interrupt Processing19.3 Interrupt Latency 19.4 Interrupt Registers Table 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 Registers Page 57 of Table 19-6. Interrupt Mask 2 INTMSK2 0xDF R/WTable 19-7. Interrupt Mask 1 INTMSK1 0xE1 R/W Table 19-9. Interrupt Vector Clear Register INTVC 0xE2 R/W Table 19-8. Interrupt Mask 0 INTMSK0 0xE0 R/W19.4.3 Interrupt Vector Clear Register Conditions 20.1 DC Characteristics20. Absolute Maximum Ratings Parameter Figure 20-1. Clock Timing 20.2 AC CharacteristicsClock SPI Timing MOSI MISO Figure 20-2. GPIO Timing DiagramSCK CPOL=0 SCK CPOL=1 MOSI MISO MSB MOSIMISO SS SCK CPOL=0 SCK CPOL=1 MOSI MSB 21. Ordering Information22. Package Handling SCK CPOL=0 SCK CPOL=1 3. DIMENSIONS IN INCHES 23. Package DiagramsFigure 23-1. 24-Pin 300-Mil SOIC S13 Figure 23-2. 24-Pin 300-Mil PDIP P13 Page 65 of Figure 23-3. 24-Pin QSOP O241Figure 23-4. 28-Pin 5.3 mm Shrunk Small Outline Package O28 Page 66 of Figure 23-5. 40-Pin 600-Mil Molded DIP P17Figure 23-6. 48-Pin Shrunk Small Outline Package O48 Submission 24. Document History PageDocument Number Orig. of Products Sales, Solutions, and Legal InformationPSoC Solutions Worldwide Sales and Design Support