Cypress Semiconductor CY7C1381D Manual de usuario descargar pdf (Pagina 16)

CY7C1381D

CY7C1383D

Document #: 38-05544 Rev. *E Page 15 of 29

Notes:

11. All voltages referenced to V

(GND).

12. Bit #24 is “1” in the Register Definitions for both 2.5V and 3.3V versions of this device.

Identification Register Definitions

Instruction Field

CY7C1381D

(512K × 36)

CY7C1383D

(1M × 18) Description

Revision Number (31:29) 000 000 Describes the version number.

Device Depth (28:24)

[12]

01011 01011 Reserved for Internal Use

Device Width (23:18) 119-BGA 101001 101001 Defines memory type and architecture

Device Width (23:18) 165-FBGA 000001 000001 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

Instruction Bypass 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.

1 2 ... 11 12 13 14 15 16 17 18 19 20 21 ... 29 30

Comentarios a estos manuales

Sin comentarios

Cypress Semiconductor CY7C1381D Manual de usuario Pagina 16

Comentarios a estos manuales

Relacionado con productos y manuales para No Cypress Semiconductor CY7C1381D