M58LW032D Ver la hoja de datos (PDF) - STMicroelectronics

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M58LW032D

32 Mbit (4Mb x8, 2Mb x16, Uniform Block) 3V Supply Flash Memory

STMicroelectronics 

M58LW032D

Table 6. Read Electronic Signature

Code

Bus Width

Address (A21-A1)(3)

Data (DQ15-DQ0)

x8

Manufacturer Code

x16

000000h

20h

0020h

x8

Device Code

x16

000001h

16h

0016h

x8

Block Protection Status

x16

SBA(1)+02h

00h (Block Unprotected)

01h (Block Protected)

0000h (Block Unprotected)

0001h (Block Protected)

Protection Register

x8, x16

000080h(2)

PRD(1)

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

WORD

ADDRESS

88h

85h

84h

81h

80h

User Programmable

Unique device number

Protection Register Lock

10

AI05501

Table 7. Word-Wide Read Protection Register

Word

Use

A8

A7

A6

A5

A4

A3

A2

A1

Lock

Factory, User

1

0

0

0

0

0

0

0

0

Factory (Unique ID)

1

0

0

0

0

0

0

1

1

Factory (Unique ID)

1

0

0

0

0

0

1

0

2

Factory (Unique ID)

1

0

0

0

0

0

1

1

3

Factory (Unique ID)

1

0

0

0

0

1

0

0

4

User

1

0

0

0

0

1

0

1

5

User

1

0

0

0

0

1

1

0

6

User

1

0

0

0

0

1

1

1

7

User

1

0

0

0

1

0

0

0

18/50

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