76
HCD-ZX80D/ZX100D
MAIN BOARD IC401 M30622MEP-A78FPU0 (MASTER CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
TUNED
I
Tuning detection signal input from the tuner (FM/AM) "L": tuned
2
ST-DOUT
O
PLL serial data output to the tuner (FM/AM)
3
ST-CLK
O
PLL serial data transfer clock signal output to the tuner (FM/AM)
4
SIRCS
I
Remote control signal input from the remote control receiver
5
ST-DIN
I
PLL serial data input from the tuner (FM/AM)
6
ST-CE
O
PLL serial chip enable signal output to the tuner (FM/AM)
7
STBY-RELAY
O
Relay drive signal output for the main power "H": power on
8
BYTE
I
External data bus width selection signal input terminal Fixed at "L" in this set
9
CNVSS
I
Processor mode switch input terminal (for test)
10
XC-IN
I
Sub system clock input terminal (32.768 kHz)
11
XC-OUT
O
Sub system clock output terminal (32.768 kHz)
12
RESET
I
System reset signal input from the reset signal generator "L": reset
For several hundreds msec. after the power supply rises, "L" is input, then it change to "H"
13
X-OUT
O
Main system clock output terminal (5 MHz)
14
VSS
-
Ground terminal
15
X-IN
I
Main system clock input terminal (5 MHz)
16
VCC
-
Power supply terminal (+3.3V)
17
NMI
I
Non-maskable interrupt input terminal Fixed at "H" in this set
18
EFFECTOR-
SELECT
O
Effector on/off control signal output to the signal selector "H": effector on
19
EFFECTOR-S0
O
Effector circuit delay time selection signal output to the multiplexer
20
AC-CUT
I
AC cut on/off detection signal input from the reset signal generator "L": AC cut on
21
MIC STATUS
O
Microphone detection signal output to the servo DSP "H": microphone in
22
MTK-KMOD
I
Karaoke mode selection signal input from the servo DSP "H": karaoke mode
23
MTK-IFBSY
O
Busy signal output to the servo DSP
24
MTK-XIFCS
I
Chip select signal input from the servo DSP
25
MTK-RESET
O
Reset signal output to the servo DSP "L": reset
26
EJECT SW
I
Disc table open/close detection signal input terminal "L": open, "H": close
27
TBL SENS
I
Disc table address sensor input terminal
28
E3
I
Disc table address detection signal input terminal
29
IIC-CLK
I/O
Two-way IIC clock bus with the display controller
30
IIC-DATA
I/O
Two-way I2C data bus with the display controller
31
MTK-SIO
O
Serial data output to the servo DSP
32
MTK-SOD
I
Serial data input from the servo DSP
33
MTK-CLK
I
Serial data transfer clock signal input from the servo DSP
34, 35
E2, E1
I
Disc table address detection signal input terminal
36
TM-F
O
Table motor drive signal output terminal (forward direction)
37
TM-R
O
Table motor drive signal output terminal (reverse direction)
38
LM-F
O
Loading motor drive signal output terminal (forward direction)
39
LM-R
O
Loading motor drive signal output terminal (reverse direction)
40
GC-RESET
O
Reset signal output to the display controller "L": reset
41
STBY-LED
O
LED drive signal output terminal
"L": red LED on (standby mode),"H": green LED on (power on mode)
42
FAN CONTROL
O
Fan motor on/off control signal output terminal "L": motor on
43 to 45
EFFECTOR-S1 to
EFFECTOR-S3
O
Effector circuit delay time selection signal output to the multiplexer
