UPD17232 datasheet(32/92 Pages) NEC

Part #	UPD17232

Description	4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER

PDF	92 Pages

Scroll/Zoom	100%

Manufacturer	NEC [NEC]

Direct Link	http://www.nec.com/

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32 / 92 page

Data Sheet U14360EJ1V0DS00

µPD17230, 17231, 17232, 17233, 17234, 17235, 17236

3.8

Switching Bit I/O

The I/O which can be set in the input or output mode in bit units is called a bit I/O. P0B and P0E are bit I/O ports,

which can be 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 P0B and P0E output latch contents are output to the port lines, as soon as the mode has

been changed.

210

P0BBIO3

P0BBIO2

P0BBIO1

P0BBIO0

Address

RF : 26H

On reset

R/W

P0BBIO0

Sets P0B0 Input/Output Mode

Sets P0B0 in input mode

Sets P0B0 in output mode

P0BBIO1

Sets P0B1 Input/Output Mode

Sets P0B1 in input mode

Sets P0B1 in output mode

P0BBIO2

Sets P0B2 Input/Output Mode

Sets P0B2 in input mode

Sets P0B2 in output mode

P0BBIO3

Sets P0B3 Input/Output Mode

Sets P0B3 in input mode

Sets P0B3 in output mode

UPD17232 Datasheet(PDF) 32 Page - NEC