Cypress CY7C1318CV18-267BZXC, 001-07160 Identification Register Definitions, Scan Register Sizes

					CY7C1318CV18
					CY7C1320CV18
Identification Register Definitions
Instruction Field			Value		Description
		CY7C1318CV18		CY7C1320CV18
Revision Number (31:29)	000			000	Version number.
Cypress Device ID (28:12)	11010100010010101			11010100010100101	Defines the type of SRAM.
Cypress JEDEC ID (11:1)	00000110100			00000110100	Allows unique identification of
					SRAM vendor.
ID Register Presence (0)	1			1	Indicates the presence of an
					ID register.

Scan Register Sizes

Register Name	Bit Size
Instruction	3
Bypass	1
ID	32
Boundary Scan	107

Instruction Codes

Instruction	Code	Description
EXTEST	000	Captures the input and 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 and 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 and 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 Number: 001-07160 Rev. *F Page 15 of 26

[+] Feedback