Cypress CY7C1380C Identification Register Definitions, Scan Register Sizes, Identification Codes

					CY7C1380C
					CY7C1382C
	Identification Register Definitions
	INSTRUCTION FIELD	CY7C1380C	CY7C1382C	DESCRIPTION
		(512KX36)	(1MX18)
	Revision Number (31:29)	010	0100	Describes the version number.
	Device Depth (28:24)	01010	1010	Reserved for Internal Use
	Device Width (23:18)	000000	000000	Defines memory type and architecture
	Cypress Device ID (17:12)	100101	010101	Defines 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		72		72

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. This instruction is not 1149.1 compliant.
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. This instruction does not implement 1149.1 preload
		function and is therefore not 1149.1 compliant.
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.

Document #: 38-05237 Rev. *D Page 19 of 36

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