CHAPTER 3 CPU ARCHITECTURE
Preliminary User’s Manual U16315EJ1V0UD
64
Table 3-5. Special Function Register List (1/3)
Manipulatable Bit Unit
Address
Special Function Register (SFR) Name
Symbol
R/W
1 Bit
8 Bits
16 Bits
After
Reset
FF00H
Port 0
P0
R/W
√
√
−
00H
FF01H
Port 1
P1
R/W
√
√
−
00H
FF02H
Port 2
P2
R
√
√
−
00H
FF03H
Port 3
P3
R/W
√
√
−
00H
FF06H
Port 6
P6
R/W
√
√
−
00H
FF07H
Port 7
P7
R/W
√
√
−
00H
FF08H
FF09H
A/D conversion result register
ADCR
R
−
−
√
Undefined
FF0AH
Receive buffer register 6
RXB6
R
−
√
−
FFH
FF0BH
Transmit buffer register 6
TXB6
R/W
−
√
−
FFH
FF0CH
Port 12
P12
R/W
√
√
−
00H
FF0DH
Port 13
P13
R/W
√
√
−
00H
FF0EH
Port 14
P14
R/W
√
√
−
00H
FF0FH
Serial I/O shift register 10
SIO10
R
−
√
−
00H
FF10H
FF11H
16-bit timer counter 00
TM00
R
−
−
√
0000H
FF12H
FF13H
16-bit timer capture/compare register 000
CR000
R/W
−
−
√
0000H
FF14H
FF15H
16-bit timer capture/compare register 010
CR010
R/W
−
−
√
0000H
FF16H
8-bit timer counter 50
TM50
R
−
√
−
00H
FF17H
8-bit timer compare register 50
CR50
R/W
−
√
−
00H
FF18H
8-bit timer H compare register 00
CMP00
R/W
−
√
−
00H
FF19H
8-bit timer H compare register 10
CMP10
R/W
−
√
−
00H
FF1AH
8-bit timer H compare register 01
CMP01
R/W
−
√
−
00H
FF1BH
8-bit timer H compare register 11
CMP11
R/W
−
√
−
00H
FF1FH
8-bit timer counter 51
TM51
R
−
√
−
00H
FF20H
Port mode register 0
PM0
R/W
√
√
−
FFH
FF21H
Port mode register 1
PM1
R/W
√
√
−
FFH
FF23H
Port mode register 3
PM3
R/W
√
√
−
FFH
FF26H
Port mode register 6
PM6
R/W
√
√
−
FFH
FF27H
Port mode register 7
PM7
R/W
√
√
−
FFH
FF28H
A/D converter mode register
ADM
R/W
√
√
−
00H
FF29H
Analog input channel specification register
ADS
R/W
√
√
−
00H
FF2AH
Power-fail comparison mode register
PFM
R/W
√
√
−
00H
FF2BH
Power-fail comparison threshold register
PFT
R/W
−
√
−
00H
FF2CH
Port mode register 12
PM12
R/W
√
√
−
FFH
FF2EH
Port mode register 14
PM14
R/W
√
√
−
FFH
FF30H
Pull-up resistor option register 0
PU0
R/W
√
√
−
00H
FF31H
Pull-up resistor option register 1
PU1
R/W
√
√
−
00H