Cypress CY7C1381DV25 - Manual (Page 15)

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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