Panasonic SJ-MR230DGH, Service Manual

Page: 49 / 65

Pin
No.
Mark I/O
Division
Function
1 AVREFO I Reference voltage input
terminal for A/V converter
2 AVDD — Power supply terminal for A
/V converter (+2.2V)
3 AVSS — Connected to GND
4 P80/
ANO0
— Connected to GND
5 P80/
ANO1
— Connected to GND
6 AVREF1 I Reference voltage input
terminal for D/A converter
(Connected to GND)
7 NMI — Connected to GND
8 LINK
RXD
I LINK serial communication
RXD input terminal
9 REM_DATA O Remote control LCD driver
data output terminal
10 P32/
SCK1
— Not used, open
11 VDD — Power supply terminal (+
2.2V)
12 VSS — GND terminal
13 X1 I Main clock input terminal (f
=10.0MHz)
14 X2 O Main clock output terminal
(f=10.0MHz)
15 RESET I RESET input terminal
16 XT1 — Sub clock input terminal
(Not used, connected to
GND)
17 XT2 — Sub clock output terminal
(Not used, open)
18 VSSBU — Not used, connected to
GND
19 VDDBU — Power supply input
terminal (+2.2V)
20 DEBUG1 O Microcomputer debug
terminal (Open)
21 DEBUG2 O Microcomputer debug
terminal (Open)
22
H_KEY_WAKEUPI
Unit key WAKE UP signal
input terminal