CHAPTER 3 CPU ARCHITECTURE
Preliminary User’s Manual U19014EJ1V0UD
43
Table 3-7. Special Function Register List (1/4)
Manipulatable Bit Unit
Address Special
Function
Register (SFR) Name
Symbol
R/W
1 Bit
8 Bits
16 Bits
After
Reset
FF00H
Port register 0
P0
R/W
√
√
−
00H
FF01H
Port register 1
P1
R/W
√
√
−
00H
FF02H
UF0 EP0 read register
UF0E0R
R
−
√
−
Undefined
FF03H
Port register 3
P3
R/W
√
√
−
00H
FF06H
Port register 6
P6
R/W
√
√
−
00H
FF09H
FF0AH
Receive buffer register 6
RXB6
R
−
√
−
FFH
FF0BH
Transmit buffer register 6
TXB6
R/W
−
√
−
FFH
FF0CH
Port register 12
P12
R/W
√
√
−
00H
FF0DH
UF0 bulk out 1 register
UF0BO1
R
−
√
−
Undefined
FF0EH
UF0 bulk in 1 register
UF0BI1
W
−
√
−
Undefined
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
UF0 EP0 setup register
UF0E0ST
R
−
√
−
00H
FF19H
UF0 EP0 write register
UF0E0W
W
−
√
−
Undefined
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
UF0 INT status 0 register
UF0IS0
R
−
√
−
00H
FF28H
UF0 INT status 1 register
UF0IS1
R
−
√
−
00H
FF29H
UF0 INT status 2 register
UF0IS2
R
−
√
−
00H
FF2AH
UF0 INT status 3 register
UF0IS3
R
−
√
−
00H
FF2BH
UF0 INT status 4 register
UF0IS4
R
−
√
−
00H
FF2CH
Port mode register 12
PM12
R/W
√
√
−
FFH
FF2DH UF0
GPR
register
UF0GPR R/W
−
√
−
00H
FF2EH
UF0 mode control register
UF0MODC
R/W
√
√
−
00H
FF2FH
UF0 mode status register
UF0MODS
R
√
√
−
00H
FF30H
Pull-up resistor option register 0
PU0
R/W
√
√
−
00H
FF31H
Pull-up resistor option register 1
PU1
R/W
√
√
−
00H
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