UPD17073 NEC, UPD17073 Datasheet - Page 62
UPD17073
Manufacturer Part Number
UPD17073
Description
4-BIT SINGLE-CHIP MICROCONTROLLER WITH HARDWARE FOR DIGITAL TUNING SYSTEM
Manufacturer
NEC
Datasheet
1.UPD17073.pdf
(226 pages)
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10.3 General-Purpose Input Ports (P1A)
10.3.1 Configuration of input ports
62
The configuration of the input ports is illustrated below.
P1A (P1A3, P1A2, P1A1, P1A0)
High ON
resistance
V
To A/D converter
DD
P1APLD3
P1APLD2
P1APLD1
P1APLD0
RESET
Write instruction
Read instruction
Port register
(1 bit)
PD17072,17073
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