Renesas H8S/2633 Series Hardware Manual page 559

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
Bus mode
PF3DDR
Pin function
Notes: *1 ADTRG input when TRGS0 = TRGS1 = 1.
PF2/ WAIT/
The pin function is switched as shown below according to the combination of
BREQO
the operating mode and bits BREQOE, WAITE, ABW5 to ABW2, and
PF2DDR.
Operating
Mode
BREQOE
WAITE
PF2DDR
Pin function
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
BRLE
PF1DDR
Pin function
Modes 4 to 6
16-bit bus
mode
—
LWR output
pin
*2 When used as an external interrupt input pin, do not use as an I/O
pin for another function.
0
0
PF2
input output
pin
Modes 4 to 6
0
0
PF1 input
pin
8-bit bus mode
0 1
PF3 input PF3 output
pin pin
ADTRG input pin*
IRQ3 input pin*
Modes 4 to 6
0
1
1 —
WAIT BREQO
PF2
input output
pin pin
1
1 —
BACK
PF1 output
pin output pin
Mode 7
—
0 1
PF3 input PF3 output
pin pin
1
2
Mode 7
1 —
— —
— 0
PF2 PF2
input output
pin pin pin
Mode 7
—
0 1
PF1 input PF1 output
pin pin
1
505