Document Number: 002-13915 Rev. *A

Page 13 of 20

S70GL02GT

10. Device ID and Common Flash Interface (ID-CFI) ASO Map

The Device ID portion of the ASO (word locations 0h to 0Fh) provides manufacturer ID, device ID, Sector Protection State, and basic

feature set information for the device.

ID-CFI Location 02h displays sector protection status for the sector selected by the sector address (SA) used in the ID-CFI enter

command. To read the protection status of more than one sector it is necessary to exit the ID ASO and enter the ID ASO using the

return Low to initiate the read (asynchronous read access). Page mode read between location 02h and other ID locations is not

supported. Page mode read between ID locations other than 02h is supported.

Table 10.1 ID (Autoselect) Address Map

Description

Address (x16)

Address (x8)

Read Data

Manufacture ID

(SA) + 0000h

(SA) + 0000h

0001h

Device ID

(SA) + 0001h

(SA) + 0002h

227Eh

Protection Verification

(SA) + 0002h

(SA) + 0004h

Sector Protection State (1= Sector protected, 0= Sector unprotected). To read a different SA

protection state only a new SA needs to be given.

Indicator Bits

(SA) + 0003h

(SA) + 0006h

For S70GL02Gt highest address sector protect:

XX3Fh = Not Factory Locked

XXBFh = Factory Locked

For S70GL02GT lowest address sector protect:

XX2Fh = Not Factory Locked

XXAFh = Factory Locked

DQ15-DQ08 = 1 (Reserved)

DQ7 - Factory Locked Secure Silicon Region

1 = Locked

0 = Not Locked

DQ6 - Customer Locked Secure Silicon Region

1 = Locked

0 = Not Locked

DQ5 = 1 (Reserved)

DQ4 - WP# Protects

0 = lowest address Sector

1 = highest address Sector

DQ3 - DQ0 = 1 (Reserved)

RFU

(SA) + 0004h

(SA) + 0008h

Reserved

(SA) + 0005h

(SA) + 000Ah

Reserved

(SA) + 0006h

(SA) + 000Ch

Reserved

(SA) + 0007h

(SA) + 000Eh

Reserved

(SA) + 0008h

(SA) + 0010h

Reserved

(SA) + 0009h

(SA) + 0012h

Reserved

(SA) + 000Ah

(SA) + 0014h

Reserved

(SA) + 000Bh

(SA) + 0016h

Reserved

Lower Software Bits

(SA) + 000Ch

(SA) + 0018h

Bit 0 - Status Register Support

1 = Status Register Supported

0 = Status Register not supported

Bit 1 - DQ polling Support

1 = DQ bits polling supported

0 = DQ bits polling not supported

Bit 3-2 - Command Set Support

11 = reserved

10 = reserved

01 = Reduced Command Set

00 = Classic Command set

Bits 4-15 - Reserved = 0

Upper Software Bits

(SA) + 000Dh

(SA) + 001Ah

Reserved

Device ID

(SA) + 000Eh

(SA) + 001Ch

2248h = 2 Gb

Device ID

(SA) + 000Fh

(SA) + 000Eh

2201h