hd64338023s Renesas Electronics Corporation., hd64338023s Datasheet - Page 250

• Manufacturer Part Number: hd64338023s
• Description: Renesas 8-bit Single-chip Microcomputer Super Low Power Series
• Manufacturer: Renesas Electronics Corporation.

Section 8 I/O Ports
8.3.4
Table 8.7 shows the port 3 pin states in each operating mode.
Table 8.7
Pins
P3
P3
P3
P3
P3
P3
P3
P3
Note: * A high-level signal is output when the MOS pull-up is in the on state.
8.3.5
Port 3 has a built-in MOS input pull-up function that can be controlled by software. When a
PCR3 bit is cleared to 0, setting the corresponding PUCR3 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.
PCR3
PUCR3
MOS input pull-up
Rev. 7.00 Mar 10, 2005 page 208 of 652
REJ09B0042-0700
7
6
5
4
3
2
1
0
/AEVL
/AEVH
/TMOFH
/TMOFL
/UD
n
n
MOS Input Pull-Up
Pin States
Port 3 Pin States
Reset
High-
impedance
Sleep
Retains
previous
state
0
0
Off
Subsleep Standby
Retains
previous
state
High-
impedance *
0
1
On
Watch
Retains
previous
state
Subactive Active
Functional Functional
1
*
Off
*: Don’t care
(n = 7 to 0)