R8C-22_1 Datasheet, PDF (35/549 Pages) Renesas Technology Corp – MCU R8C FAMILY / R8C/2x SERIES

R8C/22 Group, R8C/23 Group
4. Special Function Registers (SFRs)
4. Special Function Registers (SFRs)
An SFR (special function register) is a control register for a peripheral function.
Table 4.1 to Table 4.13 list the SFR Information.
Table 4.1 SFR Information (1)⁽¹⁾
Address
0000h
0001h
0002h
0003h
0004h
0005h
0006h
0007h
0008h
0009h
000Ah
000Bh
000Ch
000Dh
000Eh
000Fh
0010h
0011h
0012h
0013h
0014h
0015h
0016h
0017h
0018h
0019h
001Ah
001Bh
001Ch
Register
Processor Mode Register 0
Processor Mode Register 1
System Clock Control Register 0
System Clock Control Register 1
Protect Register
Oscillation Stop Detection Register
Watchdog Timer Reset Register
Watchdog Timer Start Register
Watchdog Timer Control Register
Address Match Interrupt Register 0
Address Match Interrupt Enable Register
Address Match Interrupt Register 1
Count Source Protect Mode Register
001Dh
001Eh
001Fh
0020h
0021h
0022h
0023h
0024h
0025h
0026h
High-Speed On-Chip Oscillator Control Register 0
High-Speed On-Chip Oscillator Control Register 1
High-Speed On-Chip Oscillator Control Register 2
Symbol
After reset
PM0
PM1
CM0
CM1
PRCR
OCD
WDTR
WDTS
WDC
RMAD0
AIER
RMAD1
00h
00h
01101000b
00100000b
00h
00000100b
XXh
XXh
00X11111b
00h
00h
00h
00h
00h
00h
00h
CSPR
00h
10000000b⁽⁸⁾
FRA0
FRA1
FRA2
00h
When shipping
00h
0030h
0031h
0032h
0033h
0034h
0035h
0036h
0037h
0038h
0039h
Voltage Detection Register 1⁽²⁾
Voltage Detection Register 2⁽⁶⁾
Voltage Monitor 1 Circuit Control Register⁽⁷⁾
Voltage Monitor 2 Circuit Control Register⁽⁵⁾
VCA1
VCA2
VW1C
VW2C
00001000b
00h⁽³⁾
01000000b⁽⁴⁾
0000X000b⁽³⁾
0100X001b⁽⁴⁾
00h
003Fh
X: Undefined
NOTES:
1. The blank regions are reserved. Do not access locations in these regions.
2. Software reset, watchdog timer reset, and voltage monitor 2 reset do not affect this register.
3. The LVD0ON bit in the OFS register is set to 1.
4. Power-on reset, voltage monitor 1 reset or the LVD0ON bit in the OFS register is set to 0.
5. Software reset, watchdog timer reset, and voltage monitor 2 reset do not affect b2 and b3.
6. Software reset, watchdog timer reset, and voltage monitor 2 reset do not affect b7.
7. Software reset, the watchdog timer rest, and the voltage monitor 2 reset do not affect other than the b0 and b6.
8. The CSPROINI bit in the OFS register is 0.
Rev.2.00 Aug 20, 2008 Page 15 of 501
REJ09B0251-0200