HD64F2149 Datasheet, PDF (1022/1035 Pages) Renesas Technology Corp – Hitachi 16-Bit Single-Chip Microcomputer

Hardware
standby
*¹
PAn
*²
Mode 2
EXPE
IOSE
Reset
R
QD
PAnDDR
C
WPAD
RPAO
Reset
R
QD
PAnODR
C
WPA
Keyboard buffer
controller
Output enable
Output
RPA
WPAD : Write to PADDR
WPA : Write to PAODR
RPAO : Read PAODR
RPA : Read port A
n = 2 or 3
Notes: 1. Output enable signal
2. Open-drain control signal
Figure C.38 Port A Block Diagram (Pins PA2, PA3)
Input
Key-sense
interrupt input
KMIMR n+8
A/D converter
Analog input
988