W39V080FAQ datasheet(9/35 Pages) WINBOND

9 / 35 page

W39V080FA

Publication Release Date: Dec. 13, 2005

- 9 -

Revision A5

Block Locking Registers type and access memory map Table

REGISTERS

TYPE

CONTROL

BLOCK

DEVICE PHYSICAL

ADDRESS

4GBYTES SYSTEM

MEMORY ADDRESS

BLR15

R/W

0FFFFFh – 0F0000h

FFBF0002h

BLR14

R/W

0EFFFFh – 0E0000h

FFBE0002h

BLR13

R/W

0DFFFFh – 0D0000h

FFBD0002h

BLR12

R/W

0CFFFFh – 0C0000h

FFBC0002h

BLR11

R/W

0BFFFFh – 0B0000h

FFBB0002h

BLR10

R/W

0AFFFFh – 0A0000h

FFBA0002h

BLR9

R/W

09FFFFh – 090000h

FFB90002h

BLR8

R/W

08FFFFh – 080000h

FFB80002h

BLR7

R/W

07FFFFh – 070000h

FFB70002h

BLR6

R/W

06FFFFh – 060000h

FFB60002h

BLR5

R/W

05FFFFh – 050000h

FFB50002h

BLR4

R/W

04FFFFh – 040000h

FFB40002h

BLR3

R/W

03FFFFh – 030000h

FFB30002h

BLR2

R/W

02FFFFh – 020000h

FFB20002h

BLR1

R/W

01FFFFh – 010000h

FFB10002h

BLR0

R/W

00FFFFh – 000000h

FFB00002h

Block Locking Register Bits Function Table

BIT

FUNCTION

7 – 3

Reserved

Read Lock

1: Prohibit to read in the block where set

0: Normal read operation in the block where clear. This is default state.

Lock Down

1: Prohibit further to set or clear the Read Lock or Write Lock bits. This Lock Down

Bit can only be set not clear. Only the device is reset or re-powered, the Lock Down

Bit is cleared.

0: Normal operation for Read Lock or Write Lock. This is the default state.

Write Lock

1: Prohibited to write in the block where set. This is default state.

0: Normal programming/erase operation in the block where clear.

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