Datasheet

Section 10B I/O Ports
(H8S/2695)
R01UH0166EJ0600 Rev. 6.00 Page 537 of 1434
Mar 02, 2011
H8S/2633 Group, H8S/2633 F-ZTAT
TM
,
H8S/2633R F-ZTAT
TM
, H8S/2695
Pin Selection Method and Pin Functions
PF3/LWR/ADTRG/
IRQ3
The pin function is switched as shown below according to the operating mode,
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
mode
8-bit bus mode —
PF3DDR — 0 1 0 1
Pin function LWR output
pin
PF3 input
pin
PF3 output
pin
PF3 input
pin
PF3 output
pin
ADTRG input pin
*
1
IRQ3 input pin
*
2
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
pin
PF1 output
pin
BACK
output pin
PF1 input
pin
PF1 output
pin