Datasheet

Table Of Contents
Section 9 I/O Ports
Page 232 of 846 REJ09B0140-0900 Rev. 9.00
Sep 16, 2010
H8S/2215 Group
Table 9.1 Port Functions (4)
Port Description Modes 4 and 5 Mode 6 Mode 7
*
Input/Output
Type
8-bit bus mode: PE1
16-bit bus mode: D1
PE1
Port E General I/O port
also functioning
as address output
pins
8-bit bus mode: PE0
16-bit bus mode: D0
PE0
Built-in input
pull-up MOS
When DDR = 0: PF7
When DDR = 1 (after
reset): φ
When DDR = 0
(after reset): PF7
When DDR = 1: φ
AS PF6
RD PF5
HWR PF4
8-bit bus mode:
PF3/ADTRG/IRQ3
16-bit bus mode: LWR
PF3/ADTRG/IRQ3
When WAITE = 0
(after reset) : PF2
When WAITE = 1:
WAIT
PF2
When BRLE = 0
(after reset): PF1
When BRLE = 1:
BACK
PF1
Port F General I/O port
also functioning
as interrupt input
pins and bus
control I/O pins
When BRLE = 0
(after reset): PF0/IRQ2
When BRLE = 1:
BREQ/IRQ2
PF0/IRQ2
Schmitt
triggered input
(IRQ3, IRQ2)
When DDR = 0 (after reset in mode 6):
PG4
When DDR = 1 (after reset in modes 4, 5):
CS0
PG4
When DDR = 0: PG3
When DDR = 1: CS1
PG3
When DDR = 0: PG2
When DDR = 1: CS2
PG2
Port G General I/O port
also functioning
as bus control
input pins and
interrupt Input
pins
When DDR = 0: PG1/IRQ7
When DDR = 1: CS3/IRQ7
PG1/IRQ7
Schmitt
triggered input
(IRQ7)
PG0
Note: * The USB may be unusable in mode 7 in some cases. See section 3, MCU Operating
Modes, for details.