Renesas H8 Series Hardware Manual

Section 8 I/O Ports
Rev. 7.00 Mar 10, 2005 page 201 of 652
REJ09B0042-0700
8.2.4 Pin States
Table 8.4 shows the port 1 pin states in each operating mode.
Table 8.4 Port 1 Pin States
Pins Reset Sleep Subsleep Standby Watch Subactive Active
P1
7
/ IRQ
3
/TMIF
P1
6
*
1
P1
4
/ IRQ
4
/ ADTRG
P1
3
/TMIG
High-
impedance
Retains
previous
state
Retains
previous
state
High-
impedance
*
2
Retains
previous
state
Functional Functional
Notes: 1. Pin 1
6
and the associated function are not implemented on the H8/38124 Group.
2. A high-level signal is output when the MOS pull-up is in the on state.
8.2.5 MOS Input Pull-Up
Port 1 has a built-in MOS input pull-up function that can be controlled by software. When a
PCR1 bit is cleared to 0, setting the corresponding PUCR1 bit to 1 turns on the MOS input pull-up
for that pin. The MOS input pull-up function is in the off state after a reset.
PCR1
n
001
PUCR1
n
01*
MOS input pull-up Off On Off
(n = 7, 6, 4, 3)
*: Don’t care

Renesas H8 Series Specifications

General

Brand	Renesas
Model	H8 Series
Category	Computer Hardware
Language	English