Datasheet

Section 10 I/O Ports
Rev.7.00 Mar. 18, 2009 page 458 of 1136
REJ09B0109-0700
Mode 7
Port Description Mode 1
*
3
Mode 2
*
3
Mode 4
EXPE = 1 EXPE = 0
Input/
Output
Type
Port
A
General I/O port
also functioning
as address
outputs
PA7/A23/IRQ7
PA6/A22/IRQ6
PA5/A21/IRQ5
A20/IRQ4
A19
A18
A17
A16
PA7/A23/IRQ7
PA6/A22/IRQ6
PA5/A21/IRQ5
PA4/A20/IRQ4
PA3/A19
PA2/A18
PA1/A17
PA0/A16
PA7/IRQ7
PA6/IRQ6
PA5/IRQ5
PA4/IRQ4
PA3
PA2
PA1
PA0
Only PA4
to PA7
are
Schmitt-
triggered
input
when
used as
IRQ
input.
Built-in
input pull-
up MOS
Open-
drain
output
capability
Port
B
General I/O port
also functioning
as address
outputs
A15
A14
A13
A12
A11
A10
A9
A8
PB7/A15
PB6/A14
PB5/A13
PB4/A12
PB3/A11
PB2/A10
PB1/A9
PB0/A8
PB7
PB6
PB5
PB4
PB3
PB2
PB1
PB0
Built-in
input pull-
up MOS
Port
C
General I/O port
also functioning
as address
outputs
A7
A6
A5
A4
A3
A2
A1
A0
PC7/A7
PC6/A6
PC5/A5
PC4/A4
PC3/A3
PC2/A2
PC1/A1
PC0/A0
PC7
PC6
PC5
PC4
PC3
PC2
PC1
PC0
Built-in
input pull-
up MOS