Address
Name of special function register (SFR)
0FF00H
Port 0
0FF02H
Port 2
Port 3
0FF03H
0FF04H
Port 4
0FF05H
Port 5
0FF06H
Port 6
0FF07H
Port 7
0FF0AH
0FF0BH
Port 0 buffer register
0FF0CH
Real-time output port control register
0FF10H
16-bit compare register 0
(16-bit timer/counter)
0FF11H
0FF12H
16-bit compare register 1
(16-bit timer/counter)
0FF13H
0FF14H
8-bit compare register
(8-bit timer/counter 1)
0FF15H
8-bit compare register
(8-bit timer/counter 2)
0FF16H
8-bit compare register
(8-bit timer/counter 2)
0FF17H
8-bit compare register
(8-bit timer/counter 3)
0FF18H
16-bit capture register
(16-bit timer/counter)
0FF19H
8-bit capture register
0FF1AH
(8-bit timer/counter 2)
8-bit capture/compare register
0FF1CH
(8-bit timer/counter 1)
Port 0 mode register
0FF20H
Port 3 mode register
0FF23H
Port 5 mode register
0FF25H
Port 6 mode register
0FF26H
Capture/compare control register 0
0FF30H
Timer output control register
0FF31H
Capture/compare control register 1
0FF32H
Capture/compare control register 2
0FF34H
Pull-up-resistor-option register
0FF40H
Port 3 mode control register
0FF43H
Table 3-4 Special Function Registers (SFR) (1/2)
Port 0 buffer register
Chapter 3 CPU Function
Bit unit
Symbol
R/W
1 bit
8 bits
°
°
P0
R/W
°
°
P2
R
°
°
P3
°
°
P4
R/W
°
°
P5
°
°
P6
°
°
P7
R
°
°
P0L
°
°
P0H
°
°
RTPC
—
—
CR00
—
—
—
—
CR01
—
—
R/W
°
—
CR10
°
—
CR20
°
—
CR21
°
—
CR30
—
—
CR02
—
—
R
°
CR22
—
°
—
CR11
R/W
°
PM0
—
°
PM3
—
W
°
PM5
—
°
°
PM6
R/W
°
CRC0
—
°
TOC
—
W
°
CRC1
—
°
CRC2
—
°
°
PUO
R/W
°
°
PMC3
At reset
16 bits
—
—
—
Not defined
—
×0H
—
Not defined
—
—
00H
°
°
—
Not defined
—
°
—
—
—
—
FFH
—
—
F×H
10H
—
—
—
00H
—
—
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