• DIGITAL BOARD IC1401 CXD2712R (AUDIO DSP)

Pin No.

 

Pin Name

I/O

 

Description

 

 

 

 

 

 

 

 

 

 

1

 

 

VSS3

Ground terminal

 

 

 

 

 

 

 

 

 

 

2 to

5

 

SOA to SOD

O

Serial data output to the A/D, D/A converter

 

 

 

 

 

 

 

 

6, 7

 

ECJ0, ECJ1

I

Conditional jump input terminal (fixed at “L” in this set)

 

8

 

 

NC

O

Not used (fixed at “L”)

 

 

9

 

 

XHDWR

I

Write data input from the system controller (IC1201)

 

 

 

 

 

 

 

 

 

10

 

 

XHDRD

I

Read data input terminal Not used (fixed at “H”)

 

 

 

 

 

 

 

 

 

 

11

 

 

VSS4

Ground terminal

 

 

 

 

 

 

 

 

 

 

 

12

 

 

VDD2

Power supply terminal (+3.3V)

 

 

 

 

 

 

 

 

 

 

13

 

 

HRDY

O

Ready signal output to the system controller (IC1201)

 

14

 

 

XHDCS

I

Chip select signal input from the system controller (IC1201)

15

 

 

HA0

I

Address signal input from the system controller (IC1201)

 

 

 

 

 

 

 

 

16 to

20

 

HD0 to HD4

I/O

Two-way data bus with the system controller (IC1201)

 

 

 

 

 

 

 

 

 

 

21

 

 

VSS5

Ground terminal

 

 

 

 

 

 

 

 

 

 

 

22

 

 

VDD3

Power supply terminal (+3.3V)

 

 

 

 

 

 

 

 

 

 

23 to

25

 

HD5 to HD7

I/O

Two-way data bus with the system controller (IC1201)

 

 

 

 

 

 

 

 

 

26

 

 

XRST

I

Reset signal input from the system controller (IC1201)

“L”: reset

27 to

30

 

FGP0 toFGP3

I/O

Data output terminal for the test

 

 

31

 

 

VSS6

Ground terminal

 

 

 

 

 

 

 

 

 

32 to

40

 

ED0 to ED8

I/O

Two-way data bus with external RAM

Not used (fixed at “L”)

 

 

 

 

 

 

 

 

41

 

 

VSS7

Ground terminal

 

 

 

 

 

 

 

 

 

 

42

 

 

VDD4

Power supply terminal (+3.3V)

 

 

43 to

49

 

ED9 to ED15

I/O

Two-way data bus with external RAM

Not used (fixed at “L”)

50

 

 

TEST

I

Test terminal (Normally: fixed at “L”)

 

 

51

 

 

VSS8

Ground terminal

 

 

 

 

 

 

 

 

 

 

52

 

 

VDD5

Power supply terminal (+3.3V)

 

 

 

 

 

 

 

 

53 to

60

ED16 to ED23

I/O

Two-way data bus with the S-RAM (IC1402)

 

 

 

 

 

 

 

 

 

61

 

 

VSS9

Ground terminal

 

 

 

 

 

 

 

 

62 to

69

ED24 to ED31

I/O

Two-way data bus with the S-RAM (IC1402)

 

70

 

 

XOE

O

Output enable signal output to the S-RAM (IC1402)

 

71

 

 

VSS10

Ground terminal

 

 

 

 

 

 

 

 

 

 

72

 

 

VDD6

Power supply terminal (+3.3V)

 

 

 

 

 

 

 

 

73

 

 

CAS

O

External RAM column address strobe signal output terminal Not used

 

 

 

 

 

 

 

74

 

 

XWE

O

Write enable signal output to the S-RAM (IC1402)

 

 

 

 

 

 

 

 

75

 

 

RAS

O

External RAM raw address strobe signal output terminal

Not used

76 to

80

 

EA0 to EA4

O

Address signal output to the S-RAM (IC1402) or test data input from the S-RAM (IC1402)

81

 

 

VSS11

Ground terminal

 

 

 

 

 

 

 

 

 

 

82

 

 

VDD7

Power supply terminal (+3.3V)

 

 

 

 

 

 

 

 

83 to

89

 

E5 to EA11

O

Address signal output to the S-RAM (IC1402) or test data input from the S-RAM (IC1402)

 

 

 

 

 

 

 

90

 

 

EA12

O

Address signal output to the S-RAM (IC1402)

 

 

 

 

 

 

 

 

 

91

 

 

VSS0

Ground terminal

 

 

 

 

 

 

 

 

92 to

94

EA13 to EA15

O

Address signal output to the S-RAM (IC1402)

 

95

 

 

EA16

O

Address signal output terminal (for check)

 

96

 

 

TSTA

I

Test data input terminal (Normally: fixed at “L”)

 

97

 

 

PLDIVF

I

PLL input frequency select terminal

“L”: 256fs “H”: 128fs (fixed at “L” in this set)

 

 

 

 

 

 

 

98

 

 

PLDIVB

O

PLL input frequency select terminal

“L”: 768fs “H”: 1024fs (fixed at “H” in this set)

 

 

 

 

 

 

 

 

 

51

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Image 51
Sony STR-DE845 VSS3, ECJ0, ECJ1, Xhdrd, VSS4, VDD2, VSS5, VDD3, VSS6, VSS7, VDD4, Test, VSS8, VDD5, VSS9, Xoe, VSS10, VDD6

STR-DE845 specifications

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