Cypress Semiconductor CY7C1365C Instrukcja Użytkownika Strona 17

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CY7C1365C
Document Number: 001-74584 Rev. *C Page 17 of 30
Instruction Codes
Instruction Code Description
EXTEST 000 Captures I/O 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 I/O 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 I/O 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.
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