Rev. 6.00, 08/04, page 202 of 628
8.3.4
Pin States
Table 8.7 shows the port 3 pin states in each operating mode.
Table 8.7
Port 3 Pin States
Pins
Reset
Sleep
Subsleep Standby
Watch
Subactive Active
P3
7
/AEVL
P3
6
/AEVH
P3
5
P3
4
P3
3
P3
2
/TMOFH
P3
1
/TMOFL
P3
0
/UD
High-
impedance
Retains
previous
state
Retains
previous
state
High-
impedance
*
Retains
previous
state
Functional Functional
Note:
*
A high-level signal is output when the MOS pull-up is in the on state.
8.3.5
MOS Input Pull-Up
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
n
0
0
1
PUCR3
n
0
1
*
MOS input pull-up
Off
On
Off
(n = 7 to 0)
*
: Don’t care
Summary of Contents for H8/38024 Series
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