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ABOV Semiconductor Co., Ltd.
9.13 PA Port
9.13.1 PA Port Description
PA is 5-bit I/O port. PA control registers consist of PA data register (PA), PA direction register (PAIO), debounce
enable register (PADB), PA pull-up resistor selection register (PAPU) and PA open-drain selection register (PAOD).
Refer to the port function selection registers for the PA function selection.
9.13.2 Register description for PA
PA (PA Data Register): A3H
Initial value: 00H
PAIO (PA Direction Register): E1H
Initial value: 00H
NOTE)
1. EINTF-EINTJ function possible when
input
PAPU (PA Pull-up Resistor Selection Register): AFH
Initial value: 00H
Configure Pull-up Resistor of PA Port
PAOD (PA Open-drain Selection Register): 401AH (XSFR)
Initial value: 00H
Configure Open-drain of PA Port