CY7C1354C

 

 

 

 

CY7C1356C

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Scan Register Sizes

 

 

 

 

 

 

Register Name

Bit Size (x36)

Bit Size (x18)

 

 

 

 

Instruction

3

3

 

 

 

 

 

Bypass

1

1

 

 

 

 

 

ID

32

32

 

 

 

 

 

Boundary Scan Order (119-ball BGA package)

69

69

 

 

 

 

 

Boundary Scan Order (165-ball FBGA package)

69

69

 

 

 

 

 

 

 

Identification Codes

Instruction

Code

Description

EXTEST

000

Captures the Input/Output ring contents. Places the boundary scan register between the 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 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.

 

 

 

Document #: 38-05538 Rev. *G

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Cypress CY7C1354C manual Scan Register Sizes, Identification Codes, Register Name Bit Size, Instruction Code Description