38
ZS-H10CP/H20CP
MAIN BOARD IC801 MB90802NPF-G-117E1 (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
O-POWER
O
System power on/off control signal output terminal "H": power on
2
O-FM/AM-SHIFT
O
Oscillation frequency selection on/off control signal output terminal "H": selection on
3
O-A-MUTE
O
Audio muting on/off control signal output terminal "H": muting on
4
CD-XRST
O
System reset signal output to the CD DSP "L": reset
5
O-DATA-MP3
O
MP3 serial data output to the CD DSP
6
O-CLK-MP3
O
MP3 serial data transfer clock signal output to the CD DSP
7
I-DATA-MP3
I
MP3 serial data input terminal
8
O-CD-XLAT
O
CD serial data latch pulse signal output to the CD DSP
9
O-AM-SHIFT
O
Oscillation frequency selection on/off control signal output terminal "H": selection on
10
O-XLAT-MP3
O
MP3 serial data latch pulse signal output to the CD DSP
11
O-M-MUTE
O
Muting on/off control signal output to the motor/coil driver
"L": except CD mode (muting on), "H": CD mode
12
O-RQ-MP3
O
MP3 data request signal output to the CD DSP
13
NC
I
Not used
14
NC
O
Not used
15
VCC
-
Power supply terminal (+3.3V)
16
VSS
-
Ground terminal
17
MEFA BASS
O
Megabass on/off control signal output terminal Not used
18
NC
O
Not used
19
O-TU-CE
O
Chip enable signal output to the FM/AM PLL "L" active
20
O-TU-CLK
O
Serial data transfer clock signal output to the FM/AM PLL
21
O-TU-DATA
O
Serial data output to the FM/AM PLL
22
I-TU-COUNT
I
Serial count data input from the FM/AM PLL
23
O-TU-MUTE
O
Tuner muting on/off control signal output to the FM/AM PLL "H": muting on
24
EEPROM-SDA
I/O
Two-way data bus with the EEPROM
25
EEPROM-SCL
O
Serial data transfer clock signal output to the EEPROM
26
O-CD-XTACN
O
Oscillation circuit on/off control signal output to the CD DSP
"L": oscillation stop, "H": self-oscillation
27
I-RQ-MP3
I
MP3 data request signal input from the CD DSP
28
I-ACK-MP3
I
MP3 acknowledge signal input from the CD DSP
29
I-CD-SENS
I
Internal status (SENSE) signal input from the CD DSP
30
O-CD-CLK
O
CD serial data transfer clock signal output to the CD DSP
31
O-CD-CMD
O
CD serial data output to the CD DSP
32
AVCC
-
Power supply terminal (+3.3V) (for A/D converter)
33
O-VOL-DATA
O
Serial data output to the electrical volume
34
O-VOL-CLK
O
Serial data transfer clock signal output to the electrical volume
35
AVSS
-
Ground terminal (for A/D converter)
36
I-REG 3.3V-CHK
I
Input terminal for CD +3.3V power supply voltage detection
37
I-REG 9.0V-CHK
I
Input terminal for +9V power supply voltage detection and battery voltage detection
38
I-REG 6.0V-CHK
I
Input terminal for +6V power supply voltage detection
39 to 41
I-KEY0 to I-KEY2
I
Front panel key input terminal (A/D input)
42
I-WAKE-UP
I
Wake-up signal input terminal
43
I-CD-SCOR
I
Subcode sync (S0+S1) detection signal input from the CD DSP
44
VSS
-
Ground terminal
45
I-LID-OPEN
I
CD lid detection signal input terminal "L": CD lid is closed, "H": CD lid is opened
46
O-LOAD
O
Dummy load control signal output terminal
