Pin States; Mos Input Pull-Up; Table 8.16 Port 5 Pin States - Renesas H8/3847R Series Hardware Manual

8.6.4

Pin States

Table 8.16 shows the port 5 pin states in each operating mode.

Table 8.16 Port 5 Pin States

Pins Reset
P5 /WKP / High-
7 7
SEG to P5 / impedance
8 0
WKP
/SEG
0 1
Note: * A high-level signal is output when the MOS pull-up is in the on state.
8.6.5

MOS Input Pull-Up

Port 5 has a built-in MOS input pull-up function that can be controlled by software. When a
PCR5 bit is cleared to 0, setting the corresponding PUCR5 bit to 1 turns on the MOS pull-up for
that pin. The MOS pull-up function is in the off state after a reset.
PCR5
n
PUCR5
n
MOS input pull-up
Sleep Subsleep
Retains Retains
previous previous
state state
0
0
Off
Standby Watch
High- Retains
impedance* previous
state
0
1
On
Rev. 6.00 Aug 04, 2006 page 233 of 680
Section 8 I/O Ports
Subactive Active
Functional Functional
1
*
Off
(n = 7 to 0)
*: Don't care
REJ09B0145-0600