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R5F3640DDFB Datasheet(PDF) 39 Page - Renesas Technology Corp |
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R5F3640DDFB Datasheet(HTML) 39 Page - Renesas Technology Corp |
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39 / 398 page  REJ09B0392-0064 Rev.0.64 Oct 12, 2007 Page 18 of 373 Under development Preliminary Specification Specification in this preliminary version is subject to change. M16C/64 Group 4. Special Function Registers (SFRs) 4. Special Function Registers (SFRs) An SFR (Special Function Register) is a control register for a peripheral function. Tables 4.1 to 4.14 list SFR information. NOTES: X: Undefined 1. The blank areas are reserved and cannot be accessed by users. 2. Software reset, watchdog timer reset, and oscillation stop detection reset do not affect bits PM01 and PM00 in the PM0 register, and registers VCR1, VCR2, and VW0C. 3. Oscillation stop detection reset do not affect bits CM20, CM21, and CM27. 4. The CWR bit in the RSTFR register is set to 0 after brown-out reset. This bit does not change by any other reset. Table 4.1 SFR Information (1) (1) Address Register Symbol After Reset 0000h 0001h 0002h 0003h 0004h Processor Mode Register 0 PM0 00000000b (CNVSS pin is “L”) 00000011b(CNVSS pin is “H”) (2) 0005h Processor Mode Register 1 PM1 00001000b 0006h System Clock Control Register 0 CM0 01001000b 0007h System Clock Control Register 1 CM1 00100000b 0008h Chip Select Control Register CSR 00000001b 0009h 000Ah Protect Register PRCR 00h 000Bh Data Bank Register DBR 00h 000Ch Oscillation Stop Detection Register CM2 0X000010b (3) 000Dh 000Eh 000Fh 0010h Program 2 Area Control Register PRG2C XXXXXXX0b 0011h 0012h Peripheral Clock Select Register PCLKR 00000011b 0013h 0014h 0015h Clock Prescaler Reset Flag CPSRF 0XXXXXXXb 0016h 0017h 0018h Reset Source Determine Flag RSTFR 0XXXXXXXb (4) 0019h Voltage Detection 2 Circuit Flag Register VCR1 00001000b (2) 001Ah Voltage Detection Circuit Operation Enable Register VCR2 000X0000b (Hardware reset 1) 001X0000b (Brown-out reset) (2) 001Bh Chip Select Expansion Control Register CSE 00h 001Ch PLL Control Register 0 PLC0 0X01X010b 001Dh 001Eh Processor Mode Register 2 PM2 XXX00X01b (2) 001Fh Low Voltage Detection Interrupt Register D4INT 00h 0020h 0021h 0022h 0023h 0024h 0025h 0026h 0027h 0028h 0029h 002Ah Voltage Monitor 0 Circuit Control Register VW0C 10001X10b (Hardware Reset 1) 11001X11b (Brown-out reset) (2) 002Bh 002Ch 002Dh 002Eh 002Fh |
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