IA88C00 Datasheet, PDF (41/80 Pages) InnovASIC, Inc – Microcontroller

IA88C00
Microcontroller
Data Sheet
As of Production Version -01
Figure 42. Port 2/3 B Mode Register, R249 Bank 0
Bit
Initial Value
Read/Write
7
D7
0
W/O
6
D6
0
W/O
5
D5
0
W/O
4
D4
0
W/O
3
D3
0
W/O
2
D2
0
W/O
1
D1
0
W/O
0
D0
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
Initial Value
Read/Write
7
D7
0
W/O
6
D6
0
W/O
5
D5
0
W/O
4
D4
0
W/O
3
D3
0
W/O
2
D2
0
W/O
1
D1
0
W/O
0
D0
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
Initial Value
Read/Write
7
D7
0
W/O
6
D6
0
W/O
5
D5
0
W/O
4
D4
0
W/O
3
D3
0
W/O
2
D2
0
W/O
1
D1
0
W/O
0
D0
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.
Copyright © 2005
Innovasic.com
Innovasic Semiconductor
ENG 21 0 050519-00
Page 41 of 80
www.Innovasic
1.888.824.4184