Pin States; Mos Input Pull-Up - Renesas H8 Series Hardware Manual

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
P1 / /TMIF High-
7 3
I R Q
1
*
impedance
P1
6
P1 / /
4 4
I R Q A D T R G
P1 /TMIG
3
Notes: 1. Pin 1 and the associated function are not implemented on the H8/38124 Group.
6
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
PUCR1
n
MOS input pull-up
Sleep Subsleep Standby
Retains Retains
previous previous
state state
0
0
Off
Watch
High- Retains
2
impedance *
previous
state
0
1
On
Rev. 7.00 Mar 10, 2005 page 201 of 652
Section 8 I/O Ports
Subactive Active
Functional Functional
1
*
Off
(n = 7, 6, 4, 3)
*: Don't care
REJ09B0042-0700