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CHAPTER 3 CPU ARCHITECTURE
User’s Manual U15798EJ2V0UD
Table 3-3. Special Function Register List (1/3)
Address
Special Function Register (SFR) Name
Symbol
R/W
Manipulatable Bit Unit
After Reset
1 Bit
8 Bits 16 Bits
FF00H
Port 0
P0
R/W
√
√
—
00H
FF01H
Port 1
P1
R
√
√
—
00H
FF02H
Port 2
P2
R/W
√
√
—
00H
FF03H
Port 3
P3
R/W
√
√
—
00H
FF04H
Port 4
P4
R/W
√
√
—
00H
FF07H
Port 7
P7
R/W
√
√
—
00H
FF08H
Port 8
Note 1
P8
R/W
√
√
—
00H
FF09H
Port 9
Note 1
P9
R/W
√
√
—
00H
FF0AH
Port 10
Note 1
P10
R/W
√
√
—
00H
FF0BH
Port 11
Note 1
P11
R/W
√
√
—
00H
FF0CH
Transmit buffer register 1
SOTB1
R/W
—
√
—
Undefined
FF0DH
Serial I/O shift register 1
SIO1
R
—
√
—
Undefined
FF0EH
A/D conversion result register 0
Note 2
ADCR0
Note 2
R
—
—
√
0000H
FF0FH
A/D conversion result register 1
Note 3
ADCR1
Note 3
R
—
√
—
00H
FF10H
16-bit timer capture/compare register 00
CR00
R/W
—
—
√
Undefined
FF11H
FF12H
16-bit timer capture/compare register 01
CR01
R/W
—
—
√
Undefined
FF13H
FF14H
16-bit timer counter 0
TM0
R
—
—
√
0000H
FF15H
FF16H
8-bit timer compare register 50
CR50
R/W
—
√
—
Undefined
FF17H
8-bit timer compare register 51
CR51
R/W
—
√
—
Undefined
FF18H
8-bit timer counter 50
TM50
TM5
R
—
√
√
00H
FF19H
8-bit timer counter 51
TM51
R
—
√
00H
FF1AH
Serial I/O shift register 3
SIO3
R/W
—
√
—
Undefined
FF1BH
Transmit shift register 0
TXS0
W
—
√
—
FFH
Receive buffer register 0
RXB0
R
—
√
—
FFH
FF1FH
IIC shift register 0
Note 4
IIC0
R/W
—
√
—
00H
FF20H
Port mode register 0
PM0
R/W
√
√
—
FFH
FF22H
Port mode register 2
PM2
R/W
√
√
—
FFH
FF23H
Port mode register 3
PM3
R/W
√
√
—
FFH
FF24H
Port mode register 4
PM4
R/W
√
√
—
FFH
FF27H
Port mode register 7
PM7
R/W
√
√
—
FFH
FF28H
Port mode register 8
Note 1
PM8
R/W
√
√
—
FFH
FF29H
Port mode register 9
Note 1
PM9
R/W
√
√
—
FFH
FF2AH
Port mode register 10
Note 1
PM10
R/W
√
√
—
FFH
FF2BH
Port mode register 11
Note 1
PM11
R/W
√
√
—
FFH
Notes 1.
Only the pin whose port function is selected by the pin function switching register (PF8 to PF11) is valid.
2.
µ
PD780354, 780354Y Subseries only
3.
µ
PD780344, 780344Y Subseries only
4.
µ
PD780344Y, 780354Y Subseries only