S25FL256SDPNFAQ datasheet(138/149 Pages) CYPRESS

138 / 149 page

Document Number: 001-98283 Rev. *M

Page 137 of 148

S25FL128S/S25FL256S

11.3

Device ID and Common Flash Interface (ID-CFI) ASO Map — Automotive Only

The CFI Primary Vendor-Specific Extended Query is extended to include Electronic Marking information for device traceability.

Fab Lot # + Wafer # + Die X Coordinate + Die Y Coordinate gives a unique ID for each device.

11.4

Registers

The register maps are copied in this section as a quick reference. See Section 7.5 Registers on page 48 for the full description of the

Address

Data Field

# of

bytes

Data

Format

Example of

Actual Data

Hex Read Out of Example Data

(SA) + 0180h

Size of Electronic Marking

Hex

14h

(SA) + 0181h Revision of Electronic Marking

Hex

01h

(SA) + 0182h

Fab Lot #

ASCII

LD87270

4Ch, 44h, 38h, 37h, 32h, 37h, 30h, FFh

(SA) + 018Ah

Wafer #

Hex

17h

(SA) + 018Bh

Die X Coordinate

Hex

0Ah

(SA) + 018Ch

Die Y Coordinate

Hex

0Fh

(SA) + 018Dh

Class Lot #

ASCII

BR33150

42h, 52h, 33h, 33h, 31h, 35h, 30h

(SA) + 0194h

Reserved for Future

N/A

FFh, FFh, FFh, FFh, FFh, FFh, FFh, FFh,

FFh, FFh, FFh, FFh

Table 71. Status Register 1 (SR1)

Bits

Field

Name

Function

Type

Default State

Description

SRWD

Status Register

Write Disable

Non-Volatile

1 = Locks state of SRWD, BP, and configuration

command

0 = No protection, even when WP# is low

P_ERR

Programming

Error Occurred

Volatile, Read only

1 = Error occurred

0 = No Error

E_ERR

Erase Error

Occurred

Volatile, Read only

1= Error occurred

0 = No Error

BP2

Block Protection

Volatile if CR1[3]=1,

Non-Volatile if

CR1[3]=0

1 if CR1[3]=1,

0 when

shipped from

Cypress

Protects selected range of sectors (Block) from

Program or Erase

BP1

BP0

WEL

Write Enable

Latch

Volatile

1 = Device accepts Write Registers (WRR), program

or erase commands

0 = Device ignores Write Registers (WRR), program

or erase commands

This bit is not affected by WRR, only WREN and

WRDI commands affect this bit.

WIP

Write in Progress Volatile, Read only

1= Device Busy, a Write Registers (WRR), program,

erase or other operation is in progress

0 = Ready Device is in standby mode and can

accept commands

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