R8C/36T-A Group 3. Address Space
R01DS0055EJ0100 Rev.1.00 Page 16 of 58
Dec 09, 2011
3.2 Special Function Registers (SFRs)
An SFR (special function register) is a control register for a peripheral function. Tables 3.1 to 3.16 list the SFR
Information. Table 3.17 lists the ID code Area, Option Function Select Area.
X: Undefined
Notes:
1. The blank areas are reserved. No access is allowed.
2. Depends on the CSPROINI bit in the OFS register.
3. Depends on the LVDASI bit in the OFS register.
Table 3.1 SFR Information (1)
(1)
Address Symbol Register Name After Reset Remarks
00000h
00001h
00002h
00003h
00004h PM0 Processor Mode Register 0 00h
00005h PM1 Processor Mode Register 1 10000000b
00006h
00007h PRCR Protect Register 00h
00008h CM0 System Clock Control Register 0 00101000b
00009h CM1 System Clock Control Register 1 00100000b
0000Ah OCD Oscillation Stop Detection Register 00h
0000Bh CM3 System Clock Control Register 3 00h
0000Ch CM4 System Clock Control Register 4 00000001b
0000Dh
0000Eh
0000Fh
00010h CPSRF Clock Prescaler Reset Flag 00h
00011h
00012h FRA0 High-Speed On-Chip Oscillator Control Register 0 00h
00013h
00014h FRA2 High-Speed On-Chip Oscillator Control Register 2 00h
00015h
00016h
00017h
00018h
00019h
0001Ah
0001Bh
0001Ch
0001Dh
0001Eh
0001Fh
00020h RISR Reset Interrupt Select Register 10000000b or
00000000b
(Note 2)
00021h WDTR Watchdog Timer Reset Register FFh
00022h WDTS Watchdog Timer Start Register FFh
00023h WDTC Watchdog Timer Control Register 01111111b
00024h CSPR Count Source Protection Mode Register 10000000b or
00000000b
(Note 2)
00025h
00026h
00027h
00028h RSTFR Reset Source Determination Register 00XXXXXXb
00029h
0002Ah
0002Bh
0002Ch SVDC STBY VDC Power Control Register 00h
0002Dh
0002Eh
0002Fh
00030h CMPA Voltage Monitor Circuit Control Register 00h
00031h VCAC Voltage Monitor Circuit Edge Select Register 00h
00032h OCVREFCR On-Chip Reference Voltage Control Register 00h
00033h
00034h VCA2 Voltage Detection Register 2 00000000b or
00100000b
(Note 3)
00035h
00036h VD1LS Voltage Detection 1 Level Select Register 00000111b
00037h
00038h VW0C Voltage Monitor 0 Circuit Control Register 1100XX10b or
1100XX11b
(Note 3)
00039h VW1C Voltage Monitor 1 Circuit Control Register 10001010b
