Owner manual

ManualsBrandsRainbow Electronics ManualsStorageW49F020

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Preliminary W49F020

Publication Release Date: October 1999

- 9 - Revision A1

Command Codes for Boot Block Lockout Enable

BYTE SEQUENCE BOOT BLOCK LOCKOUT FEATURE SET

ADDRESS DATA

1 Write 5555H AAH

2 Write 2AAAH 55H

3 Write 5555H 80H

4 Write 5555H AAH

5 Write 2AAAH 55H

6 Write 5555H 40H

Pause 1 Sec.

Boot Block Lockout Enable Acquisition Flow

Boot Block Lockout

Feature Set Flow

Load data AA

to

address 5555

Load data 55

to

address 2AAA

Load data 80

to

address 5555

Load data AA

to

address 5555

Load data 55

to

address 2AAA

Load data 40

to

address 5555

Pause 1 Sec.

Exit

Notes for boot block lockout enable:

Data Format: DQ7−DQ0 (Hex)

Address Format: A14−A0 (Hex)