KMD-671R
4
MICROCOMPUTER'S DESCRIPTION● Terminal Description
Pin No.
Pin Name I/O Description Processing Operation
1 TYPE 0 I Destination type input terminal 0 Pull up to BU 5V lines
2 TYPE 1 I Destination type input terminal 1 Pull down to GND
3 N.C. O Not used
4 N.C. O Not used
5 N.C. O Not used
6 N.C. O Not used
7 N.C. O Not used
8 N.C. O Not used
9 VDD - VDD connection terminal Connected to BU 5V lines
10 STBY O Power IC standby control output “Hi”: POWER ON mode
11 SVR O Power IC reset terminal When the momentary power down, after ACC OFF
is detected and after POWER OFF, the output goes
“Hi” temporarily.
12 N.C. O Not used
13 P-MUTE O Power IC mute control “Lo”: Mute
14 ANT-CON O Antenna control “Hi”: during FM/AM reception
15 IC2-SCK O Clock output to the E-VOL. IC
16 N.C. O Not used
17 P-CON O Power control “Hi”: POWER ON mode except ALL OFF mode
18 ACC-DET I ACC detection input “Hi”: ACC OFF, “Lo”: ACC ON
19 REMO I Data input from the remote control light sensor
20 P-ON O A.8V AVR ON/OFF control terminal “Hi”: POWER ON mode or during MD Loading/
Eject
21 BU-DET I Momentary power down detection input “Hi”: When momentary power down detected or
BU OFF, “Lo”: BU ON
22 TSET - Not used Connected to GND
23 IC2-SDA I/O Data input/output with the E-VOL. IC
24 MUTE O Mute control output “Hi”: Mute ON, “Lo”: Mute OFF
25 SW5 O SW 5V control “Lo”: POWER ON mode or during MD Loading/
Eject
26 M-CLK I/O
Clock input/output with the MI-COM. of MD mecha.
27 M-DATA I/O
Data input/output with the MI-COM. of MD mecha.
28 IC3-SDA I/O Data input/output with the F/E(tuner)
29 CHCON O Changer control “Lo”: Standby, “Hi”: during the movement
30 IC3-SCK O Clock output to the F/E(tuner)
31 REQ H O Request output to changers “Lo”: Request
32 ILL-ON O Illumination AVR ON/OFF control terminal “Hi”: POWER ON mode
33 DSI O DSI output terminal “Hi”: DSI LED ON
34 N.C. O Not used
35 N.C. O Not used
36 MD+B O MD servo +B ON/OFF control terminal “Hi”: MD source is selected or during MD Loading/
Eject
37 VDD - VDD connection terminal Connected to BU 5V lines
38 X2 - Main clock resonator connection terminal
39 X1 I Main clock resonator connection terminal
40 VSS - Ground connection terminal Connected to GND
41 XT2 - Sub clock resonator connection terminal
42 XT1 I Sub clock resonator connection terminal
43 RESET I Reset input terminal “Lo”: System reset
44 N.C. O Not used
45 R-CLK I Clock input from RDS decoder
46 REQ C I Request input from changers “Hi”: Request
47 KEY-REQ I Key request terminal “Lo”: Request
48 N.C. O Not used
49 LOS-SW I MD insertion detection terminal “Lo”: MD insertion detected