38
STR-K5900P/K9900P
• IC Pin Descriptions
IC1501 CXD9718BQ (DSP) (DIGITAL Board (2/4))
Pin No.
Pin Name
I/O
Pin Description
1
VSS
—
Ground
2
XRST
I
Reset signal input from SYSTEM CONTROL IC
3
EXTIN
I
Not used (Connect to ground)
4
LRCKI3
I
Not used (Connect to ground)
5
VDDI
I
Power supply pin (+2.7 V)
6
BCKI3
I
Not used (Connect to ground)
7
PLOCK
O
Not used (Open)
8
VSS
—
Ground
9
MCLK1
I
Clock signal input (13.9 MHz)
10
VDDI
I
Power supply pin (+2.7 V)
11
VSS
—
Ground
12
MCLK2
O
Clock signal output (13.9 MHz)
13
MS
I
Not used (Fixed at L)
14
SCKOUT
O
Internal system clock signal output for 8CH DAC IC
15
LRCKI1
I
Sampling clock signal input from ADC IC
16
VDDE
I
Power supply pin (+3.4 V)
17
BCKI1
I
Bit clock signal input from ADC IC
18
SDI1
I
Audio IF data input from ADC IC
19
LRCKO
O
Sampling clock signal output for 8CH DAC IC
20
BCKO
O
Bit clock signal output for 8CH DAC IC
21
VSS
—
Ground
22
KFSIO
I/O
Audio clock signal (384fs/256fs) input/output for DIR IC
23 to 26
SDO1 to SDO4
O
Digital audio serial data output for 8CH DAC IC
27
SPDIF
O
Not used (Open)
28
LRCKI2
I
Sampling clock signal input from ADC IC
29
BCKI2
I
Bit clock signal input from ADC IC
30
SDI2
I
Digital audio serial data input from DIR IC
31
VSS
—
Ground
32
HACN
O
Acknowledge signal output for SYSTEM CONTROL IC
33
HDIN
I
Serial data input from SYSTEM CONTROL IC
34
HCLK
I
Clock signal input from SYSTEM CONTROL IC
35
HDOUT
O
Serial data output for SYSTEM CONTROL IC
36
HCS
I
Chip select signal input from SYSTEM CONTROL IC
37
GP12
I
GP12 signal input from SYSTEM CONTROL IC
38, 39
GP13, GP14
O
Not used (Open)
40
VDDI
I
Power supply pin (+2.7 V)
41
VSS
—
Ground
42
GP15
O
Not used (Open)
43
OE0
O
Not used (Open)
44
CS0
O
External memory chip select signal output for D/A converter IC (SDRAM)
45
WE0
O
SDRAM write enable signal output for D/A converter IC (SDRAM)
46
VDDE
I
Power supply pin (+3.4 V)
47
WMD1
I
Not used (Fixed at H)
48
VSS
—
Ground
49
WMD0
I
Not used (Fixed at H)
50
PAGE2
O
Not used (Open)
51
VSS
—
Ground
52, 53
PAGE1, PAGE0
O
Not used (Open)
54
BOOT
I
Not used (Connect to ground)
55
TST1
O
Not used (Open)
56
BST
I
Boot stop signal input from SYSTEM CONTROL IC
