Sony HCD-RV222 Service Manual page 54

HCD-RV222
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• IC Pin Function Description
• IC505 CXD1887R (DIGITAL SIGNAL PROCESSOR, DIGITAL SERVO PROCESSOR,
MPEG VIDEO/AUDIO DECODER, VIDEO SIGNAL ENCODER) (VMP43GY BOARD (2/2))
Pin No. Pin Name
1 VB
2 IREF
3 VRF
4 VG
5 XCPSIG
6 CPSIG
7, 8 NC
9 V AVS2
10 IVD1
11 I2C CLK
12 I2C DATA
13 GPIO0
14 GPIO1
15 GPIO2
16 GIPO3
17 LVD1
18 GPIO4
19 GPIO5
20, 21 GPIO6, GPIO7
22 LVS1
TE
L 13942296513
23 GPIO8
24 GPIO9
25 GPIO10
26 GPIO11
27 LVD2
28 GPIO12
29 GPIO13
30 GPIO14
31 IVS1
32 LVS2
33 IVD2
34 to 37 DRADR0 to DRADR3
38 LVD3
39 to 45 DRADR4 to DRADR10
46 LVS3
47 IVS2
48 IVD3
49 to 56 DRDAT0 to DRDAT7
57 IVS3
58 IVD4
59 to 66 DRDAT8 to DRDAT15
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I/O
O Connected to ground via a capacitor.
O D/A converter reference current output
I D/A converter reference voltage input
O Connected to the analog power supply (+2.5 V) via a capacitor.
O Luminance video composite/component signal invert output Not used. (Fixed at "L".)
O Luminance video composite/component signal output
— Not used. (Pin 7: Open, Pin 8: Fixed at "H".)
— Analog ground pin (for D/A converter)
— Power supply pin (+3.3 V) (for I/O)
Communication data reading clock signal input or transfer clock signal output
I/O
Not used. (Open)
I/O Communication data bus pin Not used. (Open)
I Serial data input from the system controller
O Serial data output to the system controller
O Serial data transfer clock signal output to the system controller
I Request signal input from the system controller
— Digital power supply pin (+2.5 V) (for AV decoder block)
I Acknowledge signal input from the system controller
O Chip select signal output to the system controller
I/O Not used. (Open)
— Digital ground pin (for AV decoder block)
I/O Not used. (Open)
O Frequency selection signal output
I/O Not used. (Open)
O Serial data latch pulse signal output to the digital filter
— Digital power supply pin (+2.5 V) (for AV decoder block)
O Control signal output to the D/A converter
O Serial data transfer clock signal output to the digital filter and D/A conveter
O Serial data output to the digital filter and D/A converter
— Ground pin (for I/O)
— Digital ground pin (for AV decoder block)
— Power supply pin (+3.3 V) (for I/O)
O Address signal output to the D-RAM and program ROM
— Digital power supply pin (+2.5 V) (for AV decoder block)
O Address signal output to the D-RAM and program ROM
— Digital ground pin (for AV decoder block)
— Ground pin (for I/O)
— Power supply pin (+3.3 V) (for I/O)
I/O Two-way data bus with the D-RAM Data input from the program ROM
— Ground pin (for I/O)
— Power supply pin (+3.3 V) (for I/O)
I/O Two-way data bus with the D-RAM Data output to the program ROM
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2 9
8
Pin Description
Q Q
3 6 7 1 3 1 5
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9 4 2 8
0 5 8 2 9 9 4 2 8
m
9 9
9 9