40
STR-K5900P/K9900P
IC1101 MB90488BPF-G-137E1 (SYSTEM CONTROL) (DIGITAL Board (4/4))
Pin No.
Pin Name
I/O
Pin Description
1
DATAO
I
Serial data line signal input from DIR IC
2
GP9
I
GP9 signal input from DSP IC
3
BST
O
Boot stop control signal output for DSP IC
4
HCS
O
Chip select signal output for DSP IC
5
HACN
I
Acknowledge signal input from DSP IC
6
XRST
O
Reset signal output for DSP IC
7
PM
O
PLL control signal output for DSP IC
8
GP12
O
GP12 signal output for DSP IC
9
PCM1800_RST
O
Reset signal output for ADC IC
10
PCM1608_RST
O
Reset signal output for 8CH DAC IC
11
VSS
—
Ground
12
PCM1608_ML
O
Serial latch signal output for 8CH DAC IC
13
PCM1608_MC
O
Serial clock signal output for 8CH DAC IC
14
PCM1608_MDI
O
Serial data output for 8CH DAC IC
15
PCM1608_MDO
I
Serial data input from 8CH DAC IC
16
T.SERIAL_CLK
O
Serial clock signal output for tuner pack
17
TUNER_DATA
O
Serial data output for tuner pack
18
HDOUT
I
Serial data input from DSP IC
19
HDIN
O
Serial data output for DSP IC
20
HCLK
O
Serial data clock signal output for DSP IC
21
DLY_BYPASS
O
Not used (Fixed at L)
22
DIR/AD
O
Not used (Fixed at L)
23
VCC5
—
Power supply pin (+3.4 V)
24
SYS_MUTE
O
System mute control signal output
25
ANA/DIG
O
Analog/Digital port signal output
26
UPCON_RST
O
Not used (Open)
27
FLASH2_VOL/VOL_CLK
O
Flash programming signal output 2/Volume clock signal output
28
FLASH1/VOL_DATA_LATCH
O
Flash programming signal output 1/Volume data latch signal output
29
SDA
I/O
Serial data input/output for EEPROM IC
30
SCL
O
Clock signal output for EEPROM IC
31
ENC_A
O
Not used (Fixed at L)
32
ENC_B
O
Not used (Fixed at L)
33
UPCON
O
Not used (Open)
34
UPCON_CLK
O
Not used (Open)
35
AVCC
—
Power supply pin (+3.4 V)
36
AVRH
—
Power supply pin (+3.4 V)
37
AVSS
—
Ground
38 to 40
A/D0 to A/D2
I
Key signal input (A/D port)
41
VERSION
I
Destination detection signal input (Fixed at L)
42
VSS
—
Ground
43
RDS_SIG
I
Not used (Fixed at L)
44
MODEL
I
Model detection signal input (Fixed at L)
45
VOL_ENC (A)
I
Volume encoder (A) signal input
46
VOL_ENC (B)
I
Volume encoder (B) signal input
47
BLUE_LED
O
LED (MULTI CHANNEL DECODING) driver signal output
48
STOP
I
AC off detection signal input
49
MOD0
—
Selection of micon operation mode
50
MOD1
—
Not used (Connect to AVCC)
51
MOD2
—
Selection of micon operation mode
52
RDS_CLK
I
Not used (Fixed at L)
53
RDS_DATA
I
Not used (Fixed at L)
54
SIRCS
I
SIRCS signal input
