8. I/O Ports
Rev.3.00 Jul. 19, 2007 page 193 of 532
REJ09B0397-0300
8.4.4 Pin
States
Table 8.10 shows the port 3 pin states in each operating mode.
Table 8.10 Port 3 Pin States
Pins Reset
Sleep
Subsleep
Standby Watch
Subactive
Active
P3
7
to P3
3
P3
2
/SO
1
P3
1
/SI
1
P3
0
/SCK
1
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.
8.4.5
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
1
PUCR3
n
0
1
*
MOS input pull-up
Off
On
Off
Legend:
*
Don't care
Note:
n = 7 to 0
Summary of Contents for F-ZTAT H8 Series
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