Datasheet

R8C/M11A Group, R8C/M12A Group 3. Address Space
R01DS0010EJ0200 Rev.2.00 Page 15 of 45
May 31, 2012
3.2 Special Function Registers (SFRs)
An SFR (special function register) is a control register for a peripheral function. Tables 3.1 to 3.8 list the SFR
Information. Table 3.9 lists the ID Code Area and Option Function Select Area.
Notes:
1. The blank areas are reserved. No access is allowed.
2. The MSTINI bit in the OFS2 register is 0.
3. The MSTINI bit in the OFS2 register is 1.
4. The CSPROINI bit in the OFS register is 0.
5. The CSPROINI bit in the OFS register is 1.
Table 3.1 SFR Information (1)
(1)
Address Register Name Symbol After Reset
00000h
00001h
00002h
00003h
00004h
00005h
00006h
00007h
00008h
00009h
0000Ah
0000Bh
0000Ch
0000Dh
0000Eh
0000Fh
00010h
Processor Mode Register 0 PM0 00h
00011h
00012h
Module Standby Control Register MSTCR
00h
(2)
01110111b
(3)
00013h
Protect Register PRCR 00h
00014h
00015h
00016h
Hardware Reset Protect Register HRPR 00h
00017h
00018h
00019h
0001Ah
0001Bh
0001Ch
0001Dh
0001Eh
0001Fh
00020h
External Clock Control Register EXCKCR 00h
00021h
High-Speed/Low-Speed On-Chip Oscillator Control Register OCOCR 00h
00022h
System Clock f Control Register SCKCR 00h
00023h
System Clock f Select Register PHISEL 00h
00024h
Clock Stop Control Register CKSTPR 00h
00025h
Clock Control Register When Returning from Modes CKRSCR 00h
00026h
Oscillation Stop Detection Register BAKCR 00h
00027h
00028h
00029h
0002Ah
0002Bh
0002Ch
0002Dh
0002Eh
0002Fh
00030h
Watchdog Timer Function Register RISR
10000000b
(4)
00h
(5)
00031h
Watchdog Timer Reset Register WDTR XXh
00032h
Watchdog Timer Start Register WDTS XXh
00033h
Watchdog Timer Control Register WDTC 01XXXXXXb
00034h
Count Source Protection Mode Register CSPR
10000000b
(4)
00h
(5)
00035h
Periodic Timer Interrupt Control Register WDTIR 00h
00036h
00037h
00038h
External Input Enable Register INTEN 00h
00039h