Datasheet

Section 10B I/O Ports
(H8S/2695)
Page 538 of 1434 R01UH0166EJ0600 Rev. 6.00
Mar 02, 2011
H8S/2633 Group, H8S/2633 F-ZTAT
TM
,
H8S/2633R F-ZTAT
TM
, H8S/2695
Pin Selection Method and Pin Functions
PF0/BREQ/IRQ2 The pin function is switched as shown below according to the combination of
the operating mode, and bits BRLE and PF0DDR.
Operating
Mode Modes 4 to 6 Mode 7
BRLE 0 1 —
PF0DDR 0 1 — 0 1
Pin function PF0
input pin
PF0
output pin
BREQ
input pin
PF0
input pin
PF0
output pin
IRQ2 input pin
10B.13 Port G
10B.13.1 Overview
Port G is a 5-bit I/O port and also used as external interrupt input pins (IRQ6 and IRQ7) and bus
control signal output pins (CS0 to CS3).
Figure 10B.19 shows the configuration of port G pins.
PG4 /
PG3 /
PG2 /
PG1 /
PG0 /
PG4
PG3
PG2
PG1
PG0
(input) /
(input) /
(input) /
(input) /
(I/O) / IRQ6 (input)
CS0
CS1
CS2
CS3 / IRQ7
IRQ6
Port G pin Pin Functions in Modes 4 to 6
Port G
CS0 (output)
CS1 (output)
CS2 (output)
CS3 (output) / IRQ7 (input)
PG4
PG3
PG2
PG1
PG0
(I/O)
(I/O)
(I/O)
(I/O) / IRQ7 (input)
(I/O) / IRQ6 (input)
Pin Functions in Mode 7
Figure 10B.19 Port G Pin Functions