15/52

M58MR032C, M58MR032D

Note: 1. All blocks are protected at power-up, so the default configuration is 001 or 101 according to WP status.

2. Current state and Next state gives the protection status of a block. The protection status is defined by the write protect in and by

3. Next state is the protection status of a block after a Protect or Unprotect or Lock command has been issued or after WP has changed

its logic value.

(WP, DQ1, DQ0)

Program/Erase

Allowed

Protect

Unprotect

Lock

WP transition

100

Yes

101

100

111

000

101

No

101

100

111

001

110

Yes

111

110

111

011

111

No

111

110

111

011

000

Yes

001

000

011

100

001

No

001

000

011

101

011

No

011

011

011

Figure 5. Security Block Memory Map

AI90023

Parameter Block # 0

User Programmable OTP

Unique device number

Protection Register Lock

2

1

0

88h

85h

84h

81h

80h