24
VSX-523-K
1
2
3
4
A
B
C
D
E
F
1
2
3
4
5.4 IC INFORMATION
(M3030RFGPFP_256K)(CPU ASSY: IC203)
MAI
N
CPU
• Pin Function
No.
Symbol
I/O
Description
1
DIRECT_SEL
O
N
ot used
2
C
N
T_LED
O
N
ot used
3
3959_RST
O
MFI IC reset signal
4
3959_P
W
R
O
MFI IC Power control pin
5
PO
W
ERDO
WN
I
Power down signal input pin
6
N
C
N
ot used
7
RMC
I
Remote control signal input pin
8
G
N
D
Ground
9
C
NV
SS_UP
I
Switches processor mode
10
24C16_SDA
I/O
Data signal input & output for data backup of main CPU
11
24C16_SCL
O
Clock signal output for data backup of main CPU
12
RESET
I
CPU reset signal input pin (active at L)
13
XOUT
O
Output for 16 MHz Crystal
14
G
N
D
Ground
15
XI
N
I
Input for 16 MHz Crystal
16
3
V
3
+3.3
V
Power Supply
17
N
MI
Pull up
1
8
TU
N
ER_I
N
T
I
Tuner Interrupt signal input pin
19
45
88
_I
N
T
I
AK45
88
Interrupt signal input pin
20
W
OL_
NW
I
N
ot used
21
N
C
N
ot used
22
A_MUTE
O
Audio output control pins at Mute Tr (active at L)
23
HP_DET
I
Monitoring the input pin headphone connection
24
HP_RLY
I
Headphone audio output control pins at Mute Tr (active at L)
25
S
W
_SUM
I
Output for Sub
W
oofer SUMMI
N
G Control (H: SUMMI
N
G)
26
CTL_B
O
IC control signal B output pin for selecting the video input
27
N
C
N
ot used
2
8
OSD/FLT_CLK
O
OSD & FL drive IC output pin of the Clock
29
CTL_A
O
IC control signal A output pin for selecting the video input
30
_CO
N
T
O
Power control pin mute B+
31
U_TX
O
Output for Upgrade (UART)
32
U_RX
I
Input for Upgrade (UART)
33
BUSY_JTAG
O
BUSY signal output pin
34
SCLK_JTAG/TR_DET'
I
Serial clock input and Protection pin
35
V
OL_DATA
O
Data signal output for R2A15219 (I2C)
36
V
OL_CLK
O
CLK signal output for R2A15219 (I2C)
37
STBY_RLY
O
Output to ST-BY Relay O
N
/OFF (active at H)
3
8
OSD_RST
O
OSD IC Reset signal output pin
39
F_RLY
O
Tr driven control pins at the Front speaker output Relay (active at H)
40
TU
N
ER_SCLK
O
Clock signal output for Tuner Pack
41
EPM_UP
I
UPGRADE
42
TU
N
ER_SDIO
I/O
Data signal input & output for Tuner Pack
43
TU
N
ER_SE
N
O
Output for Tuner Pack Serial Enable Input (active at L)
44
TU
N
ER_RST
O
Output to reset Tuner Pack (active at L)
45
N
C
N
ot used
46
OSD_CE/CE
O
OSD IC enable signal output and UPGRADE pin
47
N
C
N
ot used
4
8
S_RLY
O
Tr driven control pins at the Surround speaker output Relay (active at H)
49
3959_SDA
I/O
MFI IC DATA signal
50
3959_SCL
I/O
MFI IC CLK signal
jomi
