68
HCD-DZ820KW
• IC Pin Function Description
MAIN BOARD IC501 M30622MEP-A61FPU0 (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
Volume control for ENCODER (Pull up)
11
EN_B/FL_RESET
I
Volume control for ENCODER (Pull up)
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
BUP 3.3V
18
DIR_ZERO
I
DIR zero data detect
19
DIR_CSFLAG/A.CAL
_OUT_LEVEL
I
DIR CSFLAG in
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 (not used)
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
A.CAL MIC DC control output
I
2
C clock input
I
2
C data input
Media Tek data out/Flash write TXD1
I
Media Tek data in/Flash write RXD1
I
Media Tek clock in/Flash write CLK1
Media Tek busy request/Flash write RTS1
MIC detect status out to Media Tek
36
XM_SC_RX_IN/
KARAOKE MODE
I
KARAOKE mode information from Media Tek
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
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