參數(shù)資料
型號: R5F21266SNXXXFP
元件分類: 微控制器/微處理器
英文描述: 16-BIT, FLASH, 20 MHz, MICROCONTROLLER, PQFP32
封裝: 7 X 7 MM, 0.80 MM PITCH, PLASTIC, LQFP-32
文件頁數(shù): 11/75頁
文件大?。?/td> 622K
代理商: R5F21266SNXXXFP
R8C/26 Group, R8C/27 Group
4. Special Function Registers (SFRs)
Rev.2.10
Sep 26, 2008
Page 17 of 69
REJ03B0168-0210
4.
Special Function Registers (SFRs)
An SFR (special function register) is a control register for a peripheral function. Tables 4.1 to 4.7 list the special
function registers.
Table 4.1
SFR Information (1)(1)
X: Undefined
NOTES:
1. The blank regions are reserved. Do not access locations in these regions.
2. The CSPROINI bit in the OFS register is set to 0.
3. In J, K version these regions are reserved. Do not access locations in these regions.
Address
Register
Symbol
After reset
0000h
0001h
0002h
0003h
0004h
Processor Mode Register 0
PM0
00h
0005h
Processor Mode Register 1
PM1
00h
0006h
System Clock Control Register 0
CM0
01101000b
0007h
System Clock Control Register 1
CM1
00100000b
0008h
0009h
000Ah
Protect Register
PRCR
00h
000Bh
000Ch
Oscillation Stop Detection Register
OCD
00000100b
000Dh
Watchdog Timer Reset Register
WDTR
XXh
000Eh
Watchdog Timer Start Register
WDTS
XXh
000Fh
Watchdog Timer Control Register
WDC
00X11111b
0010h
Address Match Interrupt Register 0
RMAD0
00h
0011h
00h
0012h
00h
0013h
Address Match Interrupt Enable Register
AIER
00h
0014h
Address Match Interrupt Register 1
RMAD1
00h
0015h
00h
0016h
00h
0017h
0018h
0019h
001Ah
001Bh
001Ch
Count Source Protection Mode Register
CSPR
00h
10000000b(2)
001Dh
001Eh
001Fh
0020h
0021h
0022h
0023h
High-Speed On-Chip Oscillator Control Register 0
FRA0
00h
0024h
High-Speed On-Chip Oscillator Control Register 1
FRA1
When shipping
0025h
High-Speed On-Chip Oscillator Control Register 2
FRA2
00h
0026h
0027h
0028h
Clock Prescaler Reset Flag
CPSRF
00h
0029h
High-Speed On-Chip Oscillator Control Register 4(3)
FRA4
When shipping
002Ah
002Bh
High-Speed On-Chip Oscillator Control Register 6(3)
FRA6
When shipping
002Ch
High-Speed On-Chip Oscillator Control Register 7(3)
FRA7
When shipping
002Dh
002Eh
002Fh
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