UX-M55
1-24
2.Pin function
GND (0V)
Resonator connecting pins for high clock(4-8MHz).
For inputting external clock, XIN is used and XOUT is opened.
Reset signal input or watchdog timer output/address-trap-reset output
Resonator connecting pins for slow clock(32.768kHz)
or general purpose I/O.
Test pin for out-going test. Always fixed to low.
Shift the crystal oscillation frequency to reduce tuner noise.
Remote control signal input
Audio mute output
Muting output during play, not connect
Muting output during recording, not connect
Play or recording output, low for recording.
Not connect
Not connect
Not connect
Deck reverse record protection input. Low means can record on
reverse side.
Deck forward record protection input. Low means can record on
forward side.
Solenoid output for deck B.
Mode switch input of deck B. Low means the head is up.
TC9422F volume STB output
Power output control
Half switch input of deck B. Low means deck B have tape.
Jog dial input and TC9422F volume data output
Jog dial input and TC9422F volume clock output
BU1923F(RDS demodulator) interface CLK input
Motor output
Reel pulse input of deck B. Have pulse input means the tape is rotating.
CD-RW control output, not connect
CD servo reset output
-
O
I
I/O
I/O
I/O
I
O
I
O
O
O
O
-
-
-
I
I
O
I
O
O
I
I/O
I/O
I
O
I
O
O
VSS
XOUT
XIN
RESET
XTOUT(P22)
XTIN(P21)
TEST
SHIFT FREQ
REMOTE
MUTE
PLAY MUTE
REC MUTE
PLAY/REC
N.C.
N.C.
N.C.
REC SW (RVS)/(WAIT)
REC SW (FWD)
B-SOL+
B-MODE SW
VOL STB
POWER
B-HALF SW
JOG-B/VOL DATA
JOG-A/VOL CLK
RDS CLK
V MOTOR
B-PHOTO OUT
CD-RW
RES
1. Terminal layout
81
(Top view)
TMP87EP26F-1J15 (IC601) : MCU
Pin No.
Symbol
I/O
Function
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
100
80
51
50
31
1
30
