upd17225 Renesas Electronics Corporation., upd17225 Datasheet - Page 27

• Manufacturer Part Number: upd17225
• Description: 4-bit Single-chip Microcontroller For Small General-purpose Infrared Remote Control Transmitter
• Manufacturer: Renesas Electronics Corporation.

3.7
set in the input or output mode in bit units by the register file shown below. When the mode is changed from input to output,
the P0E output latch contents are output to the port lines, as soon as the mode has been changed.
The I/O which can be set in the input or output mode in bit units is called a bit I/O. P0E is a bit I/O port, which can be
P0EBIO3
Switching Bit I/O
3
P0EBIO2
2
P0EBIO1
1
P0EBIO0
0
Data Sheet U12643EJ2V0DS00
P0EBIO0
P0EBIO1
P0EBIO2
P0EBIO3
RF : 27H
Address:
0
1
0
1
0
1
0
1
Sets P0E
Sets P0E
Sets P0E
Sets P0E
Sets P0E
Sets P0E
Sets P0E
Sets P0E
Sets P0E
Sets P0E
Sets P0E
Sets P0E
On reset:
PD17225, 17226, 17227, 17228
0H
0
0
0
1
1
1
2
2
2
3
3
3
Input/Output Mode
in input mode
in output mode
Input/Output Mode
in input mode
in output mode
Input/Output Mode
in input mode
in output mode
Input/Output Mode
in input mode
in output mode
R/W:
R/W
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