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M
1
6
C
2 /
6
A
G
o r
u
p
(
M
1
6
4. Special Function Registers (SFRs)
Table 4.1 SFR Information(1)
Address
0000
16
0001
16
0002
16
0003
16
Processor mode register 0
0004
16
Processor mode register 1
0005
16
System clock control register 0
0006
16
System clock control register 1
0007
16
0008
16
Address match interrupt enable register
0009
16
Protect register
000A
16
000B
16
Oscillation stop detection register
000C
16
000D
16
Watchdog timer start register
000E
16
Watchdog timer control register
000F
16
Address match interrupt register 0
0010
16
0011
16
0012
16
0013
16
Address match interrupt register 1
0014
16
0015
16
0016
16
0017
16
0018
16
Voltage detection register 1
0019
16
Voltage detection register 2
001A
16
001B
16
PLL control register 0
001C
16
001D
16
Processor mode register 2
001E
16
Low voltage detection interrupt register
001F
16
DMA0 source pointer
0020
16
0021
16
0022
16
0023
16
DMA0 destination pointer
0024
16
0025
16
0026
16
0027
16
DMA0 transfer counter
0028
16
0029
16
002A
16
002B
16
DMA0 control register
002C
16
002D
16
002E
16
002F
16
DMA1 source pointer
0030
16
0031
16
0032
16
0033
16
DMA1 destination pointer
0034
16
0035
16
0036
16
0037
16
DMA1 transfer counter
0038
16
0039
16
003A
16
003B
16
DMA1 control register
003C
16
003D
16
003E
16
003F
16
NOTES:
1. The blank spaces are reserved. No access is allowed.
2. Bits CM27, CM21, and CM20 do not change at oscillation stop detection reset.
3. The VCR1 and VCR2 registers do not change at software reset, watchdog timer reset, and oscillation stop detection reset.
4. Registers VCR1, VCR2, and D4INT cannot be used in M16C/26T.
5. M16C/26A, M16C/26B
X : Undefined
R
e
. v
2
0 .
0
F
e
b
1 .
, 5
2
0
0
7
R
E
J
0
9
B
0
2
0
2
0 -
2
0
0
C
2 /
6
, A
M
1
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C
2 /
6
, B
M
1
6
(1)
Register
(2)
(3, 4)
(3, 4)
(4)
page 20
f o
3
2
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2 /
6
) T
Symbol
PM0
PM1
CM0
CM1
AIER
PRCR
CM2
WDTS
WDC
RMAD0
RMAD1
VCR1
VCR2
PLC0
PM2
D4INT
SAR0
DAR0
TCR0
DM0CON
SAR1
DAR1
TCR1
DM1CON
After reset
00
16
00001000
2
(5)
01001000
2
01101000
2(M16C/26T)
00100000
2
XXXXXX00
2
XX000000
2
0X000000
2
XX
16
00XXXXXX
2
00
16
00
16
X0
16
00
16
00
16
X0
16
00001000
2
00
16
0001X010
2
XXX00000
2
00
16
XX
16
XX
16
XX
16
XX
16
XX
16
XX
16
XX
16
XX
16
00000X00
2
XX
16
XX
16
XX
16
XX
16
XX
16
XX
16
XX
16
XX
16
00000X00
2
4. SFRs
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