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Identification – Cypress CY7C1381DV25 User Manual

Page 15

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CY7C1381DV25, CY7C1381FV25

CY7C1383DV25, CY7C1383FV25

Document #: 38-05547 Rev. *E

Page 15 of 28

Identification Codes

Instruction

Code

Description

EXTEST

000

Captures IO ring contents. Places the boundary scan register between TDI and TDO.

Forces all SRAM outputs to High-Z state.

IDCODE

001

Loads the ID register with the vendor ID code and places the register between TDI and

TDO. This operation does not affect SRAM operations.

SAMPLE Z

010

Captures IO ring contents. Places the boundary scan register between TDI and TDO.

Forces all SRAM output drivers to a High-Z state.

RESERVED

011

Do Not Use. This instruction is reserved for future use.

SAMPLE/PRELOAD

100

Captures IO ring contents. Places the boundary scan register between TDI and TDO.

Does not affect SRAM operation.

RESERVED

101

Do Not Use. This instruction is reserved for future use.

RESERVED

110

Do Not Use. This instruction is reserved for future use.

BYPASS

111

Places the bypass register between TDI and TDO. This operation does not affect SRAM

operations.

119-Ball BGA Boundary Scan Order

[13, 14]

Bit #

Ball ID

Bit #

Ball ID

Bit #

Ball ID

Bit #

Ball ID

1

H4

23

F6

45

G4

67

L1

2

T4

24

E7

46

A4

68

M2

3

T5

25

D7

47

G3

69

N1

4

T6

26

H7

48

C3

70

P1

5

R5

27

G6

49

B2

71

K1

6

L5

28

E6

50

B3

72

L2

7

R6

29

D6

51

A3

73

N2

8

U6

30

C7

52

C2

74

P2

9

R7

31

B7

53

A2

75

R3

10

T7

32

C6

54

B1

76

T1

11

P6

33

A6

55

C1

77

R1

12

N7

34

C5

56

D2

78

T2

13

M6

35

B5

57

E1

79

L3

14

L7

36

G5

58

F2

80

R2

15

K6

37

B6

59

G1

81

T3

16

P7

38

D4

60

H2

82

L4

17

N6

39

B4

61

D1

83

N4

18

L6

40

F4

62

E2

84

P4

19

K7

41

M4

63

G2

85

Internal

20

J5

42

A5

64

H1

21

H6

43

K4

65

J3

22

G7

44

E4

66

2K

Notes

13. Balls that are NC (No Connect) are preset LOW.
14. Bit #85 is preset HIGH.

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