49
HCD-GPZ6/GPZ7
MAIN BOARD IC306 M30624MGP-A38FPU0 (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Description
1, 2
CD DISCSEN2,
CD DISC SEN1
-
Not used
3
STBY LED
O
LED drive signal output terminal "H": standby
4
SIRCS IN/WAKE
I
Remote control signal input terminal
5
MP3 DATA OUT
O
MP3 serial data output to the CD DSP
6
MP3 DATA IN
I
MP3 serial data input from the CD DSP
7
MP3 CLK
O
MP3 serial data transfer clock signal output to the CD DSP
8
BYTE
I
External data bus line byte selection signal input fixed at "L"
9
CNVSS
-
Processor mode switch terminal (for test)
10
XCIN
I
Sub system clock input terminal (32.768 kHz)
11
XCOUT
O
Sub system clock output terminal (32.768 kHz)
12
RESET
I
System reset signal input terminal "L": reset
For several hundreds msec. after the power supply rises, "L" is input, then it changes to "H"
13
XOUT
O
Main system clock output terminal (16 MHz)
14
VSS
-
Ground terminal
15
XIN
I
Main system clock input terminal (16 MHz)
16
VCC
-
Power supply terminal (+3.3V)
17
NMI
I
Non-maskable interrupt input terminal Not used
18
RDS-CLK
I
Serial data transfer clock signal input from the RDS decoder on the tuner unit
Used for AEP, UK, East European, Russian models
19
CD SCOR
I
Sub-code sync (S0+S1) detection signal input from the CD DSP
20
AC-CUT
I
AC detection signal input terminal "L": AC off
21
RDS DATA
I
Serial data input from the RDS decoder on the tuner unit
Used for AEP, UK, East European, Russian models
22
CD XRST
O
Reset signal output to the CD DSP "L": reset
23
CD XLT
O
CD serial data latch pulse output to the CD DSP
24
MP3 ACK
O
MP3 acknowledge signal output to the CD DSP
25
MP3 XLAT
O
MP3 serial data latch pulse output to the CD DSP
26
MP3 REQ
O
MP3 chip select signal output to the CD DSP
27
MP3 IREQ
O
MP3 data request signal output to the CD DSP
O
MP3 standby on/off control signal output terminal "L": standby
O
IIC data reading clock signal input or transfer clock signal output terminal Not used
IIC two-way data bus terminal Not used
O
Serial data output terminal Not used
O
Serial data transfer clock signal output terminal Not used
O
Oscillation circuit on/off switch control signal output to the CD DSP
"H": self-oscillation, "L": oscillation stop
O
CD power on/off control signal output terminal "H": power on
O
CD serial data output to the CD DSP
36
CD SENS
I
SENS signal output to the CD DSP
37
CD CLK
O
CD serial data transfer clock signal output to the CD DSP
38
CD AMUTE
O
CD muting on/off selection signal output terminal "H": muting
39
FL DATA
O
Serial data output to the FL driver
40
ELV E3/TRE A
I
Jog dial pulse input from the rotary encoder for the treble (A phase input)
41
ELV E2/TRE B
I
Jog dial pulse input from the rotary encoder for the treble (B phase input)
42
ELV E1/BASS A
I
Jog dial pulse input from the rotary encoder for the bass (A phase input)
43
ELV E0/BASS B
I
Jog dial pulse input from the rotary encoder for the bass (B phase input)
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