Special Function Registers (Sfrs); Sfrs - Renesas M16C/64A Series User Manual

M16C/64A Group
4.

Special Function Registers (SFRs)

4.1

SFRs

An SFR is a control register for a peripheral function.
Table 4.1 SFR Information (1)
Address
0000h
0001h
0002h
0003h
0004h Processor Mode Register 0
0005h Processor Mode Register 1
0006h System Clock Control Register 0
0007h System Clock Control Register 1
0008h Chip Select Control Register
0009h
000Ah Protect Register
000Bh Data Bank Register
000Ch Oscillation Stop Detection Register
000Dh
000Eh
000Fh
0010h Program 2 Area Control Register
0011h
0012h Peripheral Clock Select Register
0013h
0014h
0015h Clock Prescaler Reset Flag
0016h
0017h
0018h Reset Source Determine Register
0019h Voltage Detector 2 Flag Register
001Ah Voltage Detector Operation Enable Register
001Bh Chip Select Expansion Control Register
001Ch PLL Control Register 0
001Dh
001Eh Processor Mode Register 2
001Fh
Notes:
1. The blank areas are reserved. No access is allowed.
2. Software reset, watchdog timer reset, oscillator stop detect reset, voltage monitor 1 reset, and voltage monitor 2 reset
do not affect the following bits: bits PM01 and PM00 in the PM0 register.
3. Oscillator stop detect reset does not affect bits CM20, CM21, and CM27.
4. The state of bits in the RSTFR register depends on the reset type.
5. This is the reset value after hardware reset. Refer to the explanation of each register for details.
R01UH0136EJ0210 Rev.2.10
Jul 31, 2012
(1)
Register
4. Special Function Registers (SFRs)
Symbol Reset Value
0000 0000b
(CNVSS pin is low)
PM0
0000 0011b
(CNVSS pin is high)
PM1 0000 1000b
CM0 0100 1000b
CM1 0010 0000b
CSR 01h
PRCR 00h
DBR 00h
CM2
0X00 0010b
PRG2C XXXX XX00b
PCLKR 0000 0011b
CPSRF 0XXX XXXXb
XX00 001Xb
RSTFR
(hardware reset)
VCR1 0000 1000b
VCR2
00h
CSE 00h
PLC0 0X01 X010b
PM2 XX00 0X01b
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X: Undefined