M58LW064D

18/50

Table 6. Read Electronic Signature

Note: 1. SBA is the Start Base Address of each block, PRD is Protection Register Data.

2. Base Address, refer to Figure 6. and Tables 7 and 8 for more information.

3. A0 is not used in Read Electronic Signature in either x8 or x16 mode. The data is always presented on the lower byte in x16 mode.

Figure 6. Protection Register Memory Map

Table 7. Word-Wide Read Protection Register

Code

Bus Width

Data (DQ15-DQ0)

Manufacturer Code

x8

000000h

20h

x16

0020h

Device Code

x8

000001h

17h

x16

0017h

Block Protection Status

x8

00h (Block Unprotected)

01h (Block Protected)

x16

0000h (Block Unprotected)

0001h (Block Protected)

Protection Register

x8, x16

Word

Use

A8A7A6A5

A4A3A2A1

Lock

Factory, User

100

00

000

0

Factory (Unique ID)

100

00

001

1

Factory (Unique ID)

100

00

010

2

Factory (Unique ID)

100

00

011

3

Factory (Unique ID)

100

00

100

4

User

100

00

101

5

User

100

00

110

6

User

100

00

111

7

User

100

01

000

AI05501

User Programmable

Unique device number

Protection Register Lock

1

0

88h

85h

84h

81h

80h

WORD

ADDRESS