IA88C00
Data Sheet
Microcontroller
As of Production Version -01
Figure 42. Port 2/3 B Mode Register, R249 Bank 0
Bit
7
D7
6
D6
5
D5
4
D4
3
D3
2
D2
1
D1
0
D0
Initial Value
Read/Write
0
W/O
0
W/O
0
W/O
0
W/O
0
W/O
0
W/O
0
W/O
0
W/O
The Port 2/3 A Mode, Port 2/3 B Mode, Port 2/3 C Mode and Port 2/3 D Mode registers control the
modes of Ports 2 and 3. A separate 2-bit field for each of the bits of Ports 2 and 3 configures the bit as
input or output. The field also controls whether the bit is enabled as an external interrupt source and
selects the oputpus as open-drain or push-pull.
Figure 43. Port 2/3 C Mode Register, R250 Bank 0
Bit
7
D7
6
D6
5
D5
4
D4
3
D3
2
D2
1
D1
0
D0
Initial Value
Read/Write
0
W/O
0
W/O
0
W/O
0
W/O
0
W/O
0
W/O
0
W/O
0
W/O
The Port 2/3 A Mode, Port 2/3 B Mode, Port 2/3 C Mode and Port 2/3 D Mode registers control the
modes of Ports 2 and 3. A separate 2-bit field for each of the bits of Ports 2 and 3 configures the bit as
input or output. The field also controls whether the bit is enabled as an external interrupt source and
selects the oputpus as open-drain or push-pull.
Figure 44. Port 2/3 D Mode Register, R251 Bank 0
Bit
7
D7
6
D6
5
D5
4
D4
3
D3
2
D2
1
D1
0
D0
Initial Value
Read/Write
0
W/O
0
W/O
0
W/O
0
W/O
0
W/O
0
W/O
0
W/O
0
W/O
The Port 2/3 A Mode, Port 2/3 B Mode, Port 2/3 C Mode and Port 2/3 D Mode registers control the
modes of Ports 2 and 3. A separate 2-bit field for each of the bits of Ports 2 and 3 configures the bit as
input or output. The field also controls whether the bit is enabled as an external interrupt source and
selects the oputpus as open-drain or push-pull.
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