STR-KM5500
50
Pin No.
Pin Name
I/O
Description
1
DIR_DATA0
I
Serial data input from DIR IC
2
V_MUTE
O
Video mute signal output for COMPONENT VIDEO SELECT IC
3, 4
COMP_S2, COMP_S1
O
Component video select signal output for COMPONENT VIDEO SELECT IC
5, 6
V_SW1, V_SW2
O
Video select signal output for COMPOSITE VIDEO SELECT IC
7
V_SW4
O
Video select signal output for COMPOSITE VIDEO SELECT IC
8
XRST
O
System reset signal output for DSP EX3 IC
9
V_SW5
O
Video select signal output for COMPOSITE VIDEO SELECT IC
10
NC
—
Not used (Open)
11
VSS
—
Ground terminal
12
DAC ML
O
Serial latch signal output for 6CH DAC IC
13
DAC MC
O
Clock signal output for 6CH DAC IC
14
DAC MDI
O
Serial data output for 6CH DAC IC
15
DAC MUTE
O
Mute signal output for 6CH DAC IC
16
NC
—
Not used (Open)
17
NC
—
Not used (Open)
18
MISO (Serial In)
I
Serial data input from DSP EX3 IC
19
MOSI (Serial Out)
O
Serial data output for DSP EX3 IC
20
DSP SPI CLK
O
Serial data transfer clock signal output for DSP EX3 IC
21
DSP SPIDS (LAT)
I
Serial data latch pulse signal input for DSP EX3 IC
22
MODEL
I
Model select signal input (Fixed at L)
23
Vcc5
—
Power Supply Pin (+3.3V)
24
VOL_IC_DATA
O
Serial data output for VOLUME IC BD3471KS2
25
VOL_IC_CLK
O
Clock signal output for VOLUME IC BD3471KS2
26
DMPORT_DET
I
DMPORT detection signal input
27
FLASH2/DMPORT_MI-
COM RX
I
Flash programming signal input/ DMPORT receiver signal output
28
FLASH1/DMPORT_MI-
COM TX
O
Flash programming signal output/ DMPORT receiver signal input
29
SDA
I
Serial data input from EEPROM IC
30
SCL
O
Clock signal output for EEPROM IC
31
ENC_A
I
Input selector Encoder (A) signal input
32
ENC_B
I
Input selector Encoder (B) signal input
33
NC
—
Not used
34
P_HDMI_S1
O
Switching signal output for HDMI IC
35
AVCC
—
Power supply pin (+3.3V)
36
AVRH
—
Power supply pin (+3.3V)
37
AVSS
—
Ground
38
DCAC IN
I
AUTO CAL MIC analog signal input
39
A/D 1
I
Key signal input (A/D port)
40
A/D 2
I
Key signal input (A/D port)
41
VERSION
I
DESTINATION detection signal input (H)
42
VSS
—
Ground terminal
43
LIMITER
I
Limiter level detection circuit signal input
44
TEMP SENSOR 2
I
Temperature Sensor 2 signal input
45
VACS CTRL
—
NC
46
TEMP SENSOR 1
I
Temperature Sensor 1 signal input
47
DSP INT
I
Interrupt status input from DSP EX3 IC
48
STOP
I
AC off detection signal input
49
MD0
—
Selection of micon operation mode
50
MD1
—
Not used (Connect to AVCC)
51
MD2
—
Selection of micon operation mode
52
RDS_CLK
—
RDS data clock signal input (not used)
53
RDS_DATA
—
RDS data input (not used)
54
SIRCS
I
SIRCS signal input
55
HP DETECT
I
Headphone detection signal input
• IC Pin Function Descriptions
DIGITAL AB BOARD (3/3) IC1101 MB90F046PF-G-123E1 (SYSTEM CONTROLLER)
