Datasheet

Section 10 I/O Ports
Rev. 3.00 Mar 17, 2006 page 480 of 926
REJ09B0283-0300
10.8.4 Pin Functions
Port 8 pins also function as interrupt inputs and EXDMAC I/Os. The correspondence between the
register specification and the pin functions is shown below.
• P85/(IRQ5)/EDACK3
The pin function is switched as shown below according to the combination of bit AMS in
EDMDR_3 of the EXDMAC, bit P85DDR, and bit ITS5 in ITSR.
Modes 1, 2, 3 (EXPE = 1), 4, 5, 6, 7 (EXPE = 1)
AMS 0 1
P85DDR 0 1 —
P85 input P85 output EDACK3 outputPin function
IRQ5 interrupt input
*
Modes 3, 7 (EXPE = 0)
AMS —
P85DDR 0 1
P85 input P85 outputPin function
IRQ5 interrupt input
*
Note: * IRQ5 input when ITS5 = 1.
• P84/(IRQ4)/EDACK2
The pin function is switched as shown below according to the combination of bit AMS in
EDMDR_2 of the EXDMAC, bit P84DDR, and bit ITS4 in ITSR.
Modes 1, 2, 3
*
2
(EXPE = 1), 4, 5, 6, 7 (EXPE = 1)
AMS 0 1
P84DDR 0 1 —
P84 input P84 input/output EDACK2 outputPin function
IRQ4 interrupt input
*
1