Cypress CY7C1380F Identification Register Definitions, Scan Register Sizes, Identification Codes

					CY7C1380D, CY7C1382D
					CY7C1380F, CY7C1382F
Identification Register Definitions
Instruction Field			CY7C1380D/CY7C1380F	CY7C1382D/CY7C1382F	Description
			(512K x 36)	(1 Mbit x 18)
Revision Number (31:29)			000	000	Describes the version number.
Device Depth (28:24) [13]			01011	01011	Reserved for internal use.
Device Width (23:18) 119-BGA			101000	101000	Defines the memory type and
					architecture.
Device Width (23:18) 165-FBGA			000000	000000	Defines the memory type and
					architecture.
Cypress Device ID (17:12)			100101	010101	Defines the width and density.
Cypress JEDEC ID Code (11:1)			00000110100	00000110100	Allows unique identification of
					SRAM vendor.
ID Register Presence Indicator (0)			1	1	Indicates the presence of an ID
					register.
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)				85	85
Boundary Scan Order (165-ball FBGA package)				89	89
Identification 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.

Note

13. Bit #24 is 1 in the register definitions for both 2.5v and 3.3v versions of this device.

Document #: 38-05543 Rev. *F Page 16 of 34

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