Cypress CY7C1332AV25 - Manual (Page 11)

PRELIMINARY
CY7C1330AV25
CY7C1332AV25
Document No: 001-07844 Rev. *A Page 11 of 19
Scan Register Sizes
Register Name Bit Size—CY7C1330AV25 Bit Size—CY7C1332AV25
Instruction 3 3
Bypass 1 1
ID 32 32
Boundary Scan 70 51
Instruction Codes
Instruction Code Description
EXTEST 000 Captures the Input/Output ring contents.
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 operation.
SAMPLE Z 010 Captures the Input/Output 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 the Input/Output ring contents. Places the boundary scan register
between TDI and TDO. Does not affect the 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 operation.
Boundary Scan Order (1 Mbit x 18)
Bit # Bump ID Bit # Bump ID Bit # Bump ID
1 5R 18 7E 35 1H
2 6T 19 6D 36 3G
3 4P 20 6A 37 4D
4 6R 21 6C 38 4E
5 5T 22 5C 39 4G
6 7T 23 5A 40 4H
7 7P 24 6B 41 4M
8 6N 25 5B 42 2K
9 6L 26 3B 43 1L
10 7K 27 2B 44 2M
11 5L 28 3A 45 1N
12 4L 29 3C 46 2P
13 4K 30 2C 47 3T
14 4F 31 2A 48 2R
15 6H 32 1D 49 4N
16 7G 33 2E 50 2T
17 6F 34 2G 51 3R
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