26
VSX-523-K
1
2
3
4
A
B
C
D
E
F
1
2
3
4
(EPF025A)(D-MAIN ASSY: IC2001)
SUB CPU
• Pin Function
No.
Symbol
I/O
Description
1
N
C
N
ot used
2
CSCK_MAI
N
I
Clock signal input from main CPU
3
SCDO_MAI
N
I
Data signal input from main CPU
4
HSCL
I/O
IIC clock signal output pin
5
HSDA
I/O
IIC data signal in/output pin
6
3
V
3
+3.3
V
power supply
7
N
C
N
ot used
8
3
V
3
+3.3
V
power supply
9
G
N
D
Ground
10
N
C
N
ot used
11
N
C
N
ot used
12
3
V
3
+3.3
V
power supply
13
N
C
N
ot used
14
N
C
N
ot used
15
SUB_RST
I
Sub CPU reset signal input pin
16
SUB_OPO
I
Chip operation mode select signal input pin (0: normal)
17
G
N
D
Ground
1
8
N
C
N
ot used
19
N
C
N
ot used
20
N
C
N
ot used
21
N
C
N
ot used
22
D+1.2
V
_O
N
O
Control pin DSP IC +1.2
V
REG. IC (on: H)
23
D+1.
8V
_O
N
O
Control pin DSP IC +1.
8
V
REG. IC (on: H)
24
N
C
N
ot used
25
N
C
N
ot used
26
N
C
N
ot used
27
N
C
N
ot used
2
8
N
C
N
ot used
29
D+3.3
V
_FETO
N
O
Control pin DSP IC +3.3
V
REG. IC (on: H)
30
D+5
V
_FETO
N
O
Control pin AK45
88
IC +5
V
REG. IC (on: H)
31
N
C
N
ot used
32
N
C
N
ot used
33
N
C
N
ot used
34
N
C
N
ot used
35
N
C
N
ot used
36
SUB_IRQ
O
Interrupt signal output pin to main CPU
37
THRU_LED
O
HDMI LED on/off control pin
3
8
N
C
N
ot used
39
3
V
3
+3.3
V
power supply
40
G
N
D
Ground
41
XI
N
I
Input for 24 MHz Crystal
42
XO
O
output for 24 MHz Crystal
43
3
V
3
+3.3
V
power supply
44
G
N
D
Ground
45
RSTb
O
Reset signal output pin to HDMI IC
46
N
C
N
ot used
47
N
C
N
ot used
4
8
3
V
3
+3.3
V
power supply
49
HDMI_CEC
I/O
Data signal Input from HDMI_CEC
50
G
N
D
Ground
51
HT0_CTLB
O
Hot plug detect signal output pin (D
V
D FU
N
CTIO
N
)
52
HT1_CTLB
O
Hot plug detect signal output pin (SAT/CBL FU
N
CTIO
N
)
53
HT2_CTLB
O
Hot plug detect signal output pin (GAME FU
N
CTIO
N
)
54
HT3_CTLB
O
Hot plug detect signal output pin (BD FU
N
CTIO
N
)
55
N
C
N
ot used
56
N
C
N
ot used
57
N
C
N
ot used
5
8
I
N
Tb
I
interrupt signal input pin from EP9442
59
N
C
N
ot used
60
HPD_I
N
I
Intput for HDMIOUT HPD
61
N
C
N
ot used
62
SUB_RXD
I
Soft update UART comunication data input pin (UPDATE JIG B'D)
63
SUB_TXD
O
Soft update UART comunication data output pin (UPDATE JIG B'D)
64
HDMI_CEC
I/O
Data signal Input from HDMI_CEC