Datasheet

Section 8 I/O Ports
Rev.7.00 Feb. 14, 2007 page 291 of 1108
REJ09B0089-0700
Pin Selection Method and Pin Functions
PF3/LWR/IRQ3
The pin function is switched as shown below according to the operating mode,
and bit PF3DDR, and bit LWROD in SYSCR.
Operating
Mode Modes 4 to 6
*
1
Mode 7
*
1
LWROD 0 1
*
3
—
PF3DDR — 0 1 0 1
Pin function LWR
output pin
PF3
input pin
PF3
output pin
PF3
input pin
PF3
output pin
IRQ3 interrupt input pin
*
2
PF2/WAIT/IRQ2/
BREQO
The pin function is switched as shown below according to the operating mode,
and WAITE bit, BREQOE bit in BCRL and PF2DDR bit.
Operating
Mode Modes 4 to 6
*
1
Mode 7
*
1
BREQOE 0 1 —
WAITE 0 1 0 1 —
PF2DDR 0 1 0 1 — — 0 1
Pin function PF2
input
pin
PF2
output
pin
WAIT
input
pin
Setting
prohi-
bited
BREQO
output
pin
Setting
prohi-
bited
PF2
input
pin
PF2
output
pin
IRQ2 interrupt input pin
*
2