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25
STR-K740P/K840P
3-16. IC PIN FUNCTION DESCRIPTIONS
• IC1601 MB90478PF-G-120-BND (SYSTEM CONTROL)
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
I/O
I
I
O
O
I
O
O
O
O
O
—
O
O
O
O
O
O
I
O
O
O
O
—
I
I
O
O
I/O
O
O
O
O
O
I/O
—
I
—
I
I
I
I
—
I
I
I
O
I
I
I
I
Pin Name
DATAO
GP9
BST
HCS
HACN
XRST
PM
PD
SMUTE
CDT1
VSS
SCL
CS
DATA
CLK
LATCH
SPK B RELAY
HDOUT
HDIN
HCLK
F.MUTE
AC MUTE
VCC5
ANA/DIG
HP DETECT
DCS LED
FLASH2
SP SWITCH/FLASH1
BLUE LED
MODE
2CH
AFD
SCL
SDA
AVCC
AVRH
AVSS
A/D0
A/D1
A/D2
A/D3
VSS
RDS SIGNAL
MODEL
VERSION
NC
NC
STOP
MD0
MD1
Description
Audio data signal input from DIR
GP9 signal input from DSP
BST signal output to DSP
HCS signal output to DSP
HACN signal input from DSP
Reset signal output to DSP
PM signal output to DSP
Power down signal output to AUDIO CODEC
Muting signal output to AUDIO CODEC
Control data signal output to AUDIO CODEC
Ground
Clock signal output to AUDIO CODEC
Chip select signal output to AUDIO CODEC
Control data signal output to the sound processor
Clock signal output to the sound processor
Latch signal output to the sound processor
Not used
HDOUT signal input from DSP
HDIN signal output to DSP
Clock signal output to DSP
Muting signal output
Muting signal output to the power amplifier
Power supply
Muting and error signal input
Headphone switch detect signal input
DCS LED control signal output
Terminal for FLASH programming
Speaker ON/OFF switch signal input / Terminal for FLASH programming
MULTI CH LED control signal output
MODE LED control signal output
2CH LED control signal output
AFD LED control signal output
Serial clock output
Serial data input or output
Analog power supply
Analog reference voltage input
Analog ground
Function key push signal input
Function key push signal input
Function key push signal input
Function key push signal input
Ground
RDS signal detect input
Version setting input (MODEL)
Version setting input (DESTINATION)
Not used
Not used
AC off detect signal input
Operation mode setting input
Operation mode setting input
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