HCD-ZX66i/ZX99i
68
MAIN BOARD (2/3) IC401 R5F3640MDFAR (SYSTEM CONTROL)
Pin No.
Pin Name
I/O
Description
1
MP3-ACK
I
Acknowledgement input signal from MP3 decoder IC (L: acknowledged)
2
MP3-LP
O
Latch output signal to MP3 decoder IC (L: enable)
3
MP3-CS
O
Chip select output signal to MP3 decoder IC (L: enable)
4
SIRCS
I
Remote control signal input
5
MP3-DATA-OUT
O
Serial data output signal to MP3 decoder IC
6
MP3-DATA-IN
I
Serial data input signal from MP3 decoder IC
7
MP3-CLK
O
Serial data transfer clock signal to MP3 decoder IC
8
BYTE
—
Ground
9
CNVSS
—
Ground
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 IC (L: reset). After the power supply rises,L is
input for several hundreds msec and then change to H.
13
X-OUT
O
Main system clock output terminal (16 MHz)
14
VSS
—
Ground
15
X-IN
I
Main system clock input terminal (16 MHz)
16
VCC
—
Power supply terminal (+3.3 V)
17
NMI
I
Non-maskable interrupt input terminal
18
MP3-RST
O
Reset signal output to MP3 decoder IC
19
SCOR
I
Subcode sync (S0+S1) detection signal input from the digital signal processor
20
AC-CUT
I
AC off detection signal input from the reset signal IC (L: AC cut detected)
21
SENS
I
Internal status detection monitor input from the digital signal processor
22
CD-CLK
O
Serial data transfer clock signal output to the digital signal processor
23
XLAT
O
Serial data latch pulse output to the digital signal processor
24
CD-DATA
O
Serial data output to the digital signal processor
25
XRST
O
Reset signal output to the digital signal processor and the motor/coil driver (L: reset)
26
XCTN
O
BD DSP Oscillation on/off control signal output (H: on)
27
NO USE
I
Not Used. (Open)
28
STBY-RELAY
O
Main power on/off control signal output (H: power on)
29
IIC-CLK
I/O
Clock signal for IIC communcation between master control controller and display Control
controller
30
IIC-DATA
I/O
Data signal for IIC communcation between master control controller and display Control
controller
31
MP3-STB
O
Standby mode signal output MP3 decoder IC (L: standby mode)
32
NO USE
I
Not Used. (Open)
33
FOR PROG
I
Not Used. (Open)
34
LINE MUTE
O
Line muting on/off control signal (H: muting on)
35
IPOD TXD
O
Serial data output to the iPod
36
IPOD RXD
I
Serial data receive from the iPod
37
IPOD POWER
O
iPod power control (L: OFF, H: ON) (Not used in this set)
38
IPOD MUTE
O
iPod muting control (L: MUTE)
39
NO USE
I
Not Used. (Open)
40
CD POWER
O
Power on/off control signal output to BU section (H: power on)
41
CD A-MUTE
O
CD analog signal muting on/off control signal output (H: power on)
42
TSENS
I
Disc tray position detection signal input from CDM
43
DSENS
I
Disc existence detection signal input from CDM
44
S2
I
Disc tray status detection signal input from CDM
45
S1
I
Disc tray status detection signal input from CDM
46
S0
I
Disc tray status detection signal input from CDM
47
TRMP
O
CDM turning motor control signal output
48
TRMN
O
CDM turning motor control signal output
49
CKMN
O
CDM loading motor control signal output
50
CKMP
O
CDM loading motor control signal output
51 to 59
NO USE
I
Not Used. (Open)
60
EEPROM DATA
I/O
EEPROM data signal input/output
