H8S-2633 Datasheet, PDF (579/1487 Pages) Renesas Technology Corp – 16-Bit Single-Chip Microcomputer

Section 10B I/O Ports (H8S/2695)
Pin
Selection Method and Pin Functions
PF3/LWR/ADTRG/ The pin function is switched as shown below according to the operating mode,
IRQ3
the bus mode, A/D converter bits TRGS1 and TRGS0, and bit PF3DDR.
Operating
mode
Modes 4 to 6
Mode 7
Bus mode
16-bit bus
8-bit bus mode
—
mode
PF3DDR
—
0
1
0
1
Pin function
LWR output PF3 input
pin
pin
PF3 output PF3 input
pin
pin
ADTRG input pin^*1
IRQ3 input pin^*2
PF3 output
pin
Notes: 1. ADTRG input when TRGS0 = TRGS1 = 1.
2. When used as an external interrupt input pin, do not use as an I/O
pin for another function.
PF2/ / WAIT
BREQO
The pin function is switched as shown below according to the combination of
the operating mode and bits BREQOE, WAITE, ABW5 to ABW2, and
PF2DDR.
Operating
Mode
Modes 4 to 6
Mode 7
BREQOE
0
1
—
WAITE
0
1
—
—
PF2DDR
0
1
—
—
0
1
Pin function
PF2
input
pin
PF2
output
pin
WAIT
input
pin
BREQO
output
pin
PF2
input
pin
PF2
output
pin
PF1/BACK
The pin function is switched as shown below according to the combination of
the operating mode and bits BRLE and PF1DDR.
Operating
Mode
Modes 4 to 6
Mode 7
BRLE
0
1
—
PF1DDR
0
1
—
0
1
Pin function
PF1 input PF1 output BACK PF1 input PF1 output
pin
pin
output pin
pin
pin
Rev. 5.00 Mar 28, 2005 page 517 of 1422
REJ09B0234-0500