Renesas H8S/2158 User Manual page 262

Section 9 I/O Ports
Port Description
Port General I/O port
8 also functioning
as A/D converter
external trigger
input pin, SCI_0,
SCI_1, and
SCI_2 clock
inputs/outputs,
IIC_0 and IIC_1
inputs/outputs,
ExTMR_0,
ExTMR_1,
ExTMR_X, and
ExTMR_Y
inputs, USB
external clock
input, and
interrupt input
Port General I/O port
9 also functioning
as bus control
input/output,
CompactFlash
control input/
output, system
clock output, and
external sub-
clock input
Port General I/O port
A also functioning
as address
output, keyboard
input, and SCI_0
and SCI_2
external control
pins
Notes: 1. 8-bit data bus is selected.
2. 16-bit data bus is selected.
3. Extended mode (mode 2)
4. Extended mode (mode 3)
Rev. 3.00 Jan 25, 2006 page 208 of 872
REJ09B0286-0300
Extended Mode
Mode 2, Mode 3
(EXPE = 1)
P87/ExIRQ15/ADTRG/ExTMIY/USEXCL
P86/ExIRQ14/SCK2/ExTMIX
P85/ExIRQ13/SCK1/ExTMI1
P84/ExIRQ12/SCK0/ExTMI0
P83/ExIRQ11/SDA1
P82/ExIRQ10/SCL1
P81/ExIRQ9/SDA0
P80/ExIRQ8/SCL0
P97/WAIT/CPWAIT/CS256
P96/φ/EXCL
AS/IOS
HWR/CPWE
RD/CPOE
P92/CPCS1
P91/CPCS2
P90/LWR
PA1/A17/ PA1/KIN9/
KIN9/SSE2I * 3 SSE2I *
PA0/A16/ PA0/KIN8/
KIN8/SSE0I * 3 SSE0I *
Single-Chip Mode
Mode 2, Mode 3
(EXPE = 0)
P97
P95
P94
P93
P92
P91
P90
PA1/KIN9/SSE2I
4
PA0/KIN8/SSE0I
4
I/O Status
P87 to P80
are NMOS
push-pull
outputs.
SDA1, SCL1,
SDA0, and
SCL0 are
NMOS open
drain outputs.
Built-in input
pull-up MOSs