MSM6352 View Datasheet(PDF) - Oki Electric Industry
Part Name
Description
Manufacturer
MSM6352 Datasheet PDF : 22 Pages
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¡ Semiconductor
MSM6352
FUNCTIONAL DESCRIPTION
Input Port (R1-R4)
Input only port that consists of 4 bits (R1, R2, R3, R4). The port status is determined by the input
instruction. Each input pin, which is pulled down to VSS (low level) through a resistor, can be
used as a keyboard input pin.
R1
BUS 0
R2
BUS 1
R3
BUS 2
R4
BUS 3
VSS
Input instruction (IN 0, AP)
Figure 1. Input Port (R1-R4) Configuration
Input Port (R5-R8)
Input only port that consists of 4 bits (R5, R6, R7, R8). The port status is determined by the input
instruction.
R5
BUS 0
R6
BUS 1
R7
BUS 2
R8
BUS 3
VSS
Input instruction (IN 1, AP)
Figure 2. Input Port (R5-R8) Configuration
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