84
HCD-FX900W
• IC Pin Function Description
MAIN BOARD IC501 M30626MJP-A02FPU0 (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
DAMP_SCDT/
O
DAMP processor and Diat data output
DIAT_SDATA
2
DAMP_SHIFT/
O
DAMP processor and Diat clock output
DIAT_SCLK
3
DSP_INTR
I
DSP interrupt
4
SIRCS_IN
I
SIRCS input
5
DSP_MOSI/DIR_DIN
O
DSP and DIR data output
6
DSP_MISO
I
DSP data input
7
DSP_SPICLK/DIR_CLK
O
DSP/DIR clock output
8
BYTE
I
External data bus (Ground terminal)
9
CNVSS
I
Change processor mode (Pull down)
10
EN_A/DAMP FSDLY
I
S-master FSDLY select switch (Pull up)
11
EN_B/FL_RESET
O
FL driver (ML9208) reset
12
RESET
I
System reset signal input
13
XOUT
O
Crystal output for main clock (5MHz)
14
VSS
—
Ground terminal
15
XIN
I
Crystal input for main clock (5MHz)
16
VCC
—
Power supply (BUP+3.3V)
17
NMI
I
Not used (Pull up)
18
DIR_ZERO
I
DIR zero data detect
19
DIR_CSFLAG/A.CAL
_OUT_LEVEL
I
DIR_CSFLAG input
20
AC_CUT
I
Detect AC-CUT
21
FL_CLK/LED_CLK
O
FL and LED driver clock output
22
LED_LAT
O
LED driver latch
23
DIAT_CSOD
I
DIAT CSOD signal input
24
FL_D_OUT/LED_DATA
O
FL and LED driver data output
25
FL_CS/STB
O
FL driver chip select
26
MIC_GAIN
O
MIC gain control
27
CDM_OPEN_SW
I
CDM open switch input
28
DC_CONT
O
A.CAL MIC DC control output
29
I2C_CLK
I/O
I
2
C clock input/output
30
I2C_DATA
I/O
I
2
C data input/output
31
DVD_SID
O
Media Tek data out/Flash write TXD1
32
DVD_SOD
I
Media Tek data in/Flash write RXD1
33
DVD_SCO
I
Media Tek clock in/Flash write CLK1
34
DVD_XIFBUSY
O
Media Tek busy request/Flash write RTS1
35
XM_SC_TX_OUT/
MIC_DET_OUT
O
MIC detect status out to Media Tek or XM system controller BUS data output
36
XM_SC_RX_IN/
KARAOKE mode information from Media Tek or XM system controller BUS data input
KARAOKE MODE
I
37
DVD XIFCS
I
Media Tek chip select
38
MTK RST
O
Media Tek reset
39
P_CONT1
O
Control for power supply 1
40
P_CONT2
O
Control for power supply 2
41
P_CONT3
O
Control for power supply 3
42
DRIVE_RST (EN)
O
DAMP driver reset
