Pin Functions - Renesas H8 Series Hardware Manual

8-bit single-chip microcomputer
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Section 8 I/O Ports
8.2.3

Pin Functions

Table 8.3 shows the port 1 pin functions.
Table 8.3
Port 1 Pin Functions
Pin
Pin Functions and Selection Method
P1
/
/TMIF
The pin function depends on bit IRQ3 in PMR1, bits CKSL2 to CKSL0 in TCRF,
7
3
I R Q
and bit PCR1
CKSL2 to CKSL0
Pin function
Note: When this pin is used as the TMIF input pin, clear bit IEN3 to 0 in IENR1
P1
The pin function depends on bit PCR1
6
Pin function
Note: Pin 16 and the associated function are not implemented on the H8/38124
P1
/
The pin function depends on bit IRQ4 in PMR1, bit TRGE in AMR, and bit PCR1
4
4
I R Q
in PCR1.
A D T R G
Pin function
Note: When this pin is used as the
P1
/TMIG
The pin function depends on bit TMIG in PMR1 and bit PCR1
3
Pin function
Rev. 7.00 Mar 10, 2005 page 200 of 652
REJ09B0042-0700
in PCR1.
7
IRQ
3
PCR1
0
7
P1
input pin P1
7
to disable the IRQ
interrupt.
3
PCR1
6
Group.
IRQ4
PCR1
0
4
TRGE
P1
input pin P1
4
IENR1 to disable the IRQ
TMIG
PCR1
0
3
P1
input pin P1
3
0
1
*
output pin
7
in PCR1.
6
0
P1
input pin
6
0
1
*
output pin
4
input pin, clear bit IEN4 to 0 in
A D T R G
interrupt.
4
0
1
output pin
3
1
*
Not 0**
0**
input pin
3
3
I R Q
I R Q
input pin
1
P1
output pin
6
1
*
0
input pin
/
4
4
I R Q
I R Q
input pin
in PCR1.
3
1
*
TMIG input pin
*: Don't care
/TMIF
4
1
A D T R G

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