Ic Pin Function - Sony STR-DB830 Service Manual

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4-22. IC PIN FUNCTION DESCRIPTION
IC1401 CXD2712R AUDIO DSP(DIGITAL BOARD)
Pin No. Pin Name
1 VSS3
2 – 5 SOA – SOD
6, 7 ECJ0, ECJ1
8 —
9 XHDWR
10 XHDRD
11 V 4
SS
12 V 2
DD
13 HRDY
14 XHDCS
15 HA0
16 – 20 HD0 – HD4
21 V 5
SS
22 V 3
DD
23 – 25 HD5 – HD7
26 XRST
27 – 30 FGP0 – FGP3
31 V 6
SS
32 – 40 ED0 – ED8
41 V 7
SS
42 V 4
DD
43 – 49 ED9 – ED15
TE
L 13942296513
50 TSTD
51 V 8
SS
52 V 5
DD
53 – 60 ED16 – ED23
61 V 9
SS
62 – 69 ED24 – ED31
70 XOE
71 V 10
SS
72 V 6
DD
73 CAS
74 XWE
75 RAS
76 – 80 EA0 – EA4
81 V 11
SS
82 V 7
DD
83 –89 EA5 – EA11
90 EA12
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I/O
— Ground
O Serial data output
I Conditional jump input terminal (7pin Connected to ground)
NC No connection
I HCIF data write
I HCIF data read
— Ground
— +3.3V
O HCIF ready signal Open drain
I HCIF chip select
I HCIF address input
I/O HCIF data input/output
— Ground
— +3.3V
I/O HCIF data input/output
I Reset input "L": active
O Test data output
— Ground
I/O External RAM data input/output
— Ground
— +3.3V
I/O External RAM data input/output
I Test data input "L" = normal "H" = test (Connected to ground)
— Ground
— +3.3V
I/O External RAM data input/output
— Ground
I/O External RAM data input/output
O External RAM output enable
— Ground
— +3.3V
O External RAM column address strobe (Not used)
O External RAM write enable (Not used)
O External RAM raw address strobe
I/O External RAM address output/test data input
— Ground
— +3.3V
I/O External RAM address output/test data input
O External RAM address output
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Description
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3 6 7 1 3 1 5
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