D12320VF25V Datasheet, PDF (325/1146 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

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