M58LT128HST datasheet(87/110 Pages) STMICROELECTRONICS

87 / 110 page

M58LT128HST, M58LT128HSB

Common Flash Interface

87/110

Table 38.

Bank and Erase Block region information(1) (2)

The variable P is a pointer which is defined at CFI offset 015h.

Bank Regions. There are two Bank Regions, see Table 29 and Table 30.

Flash memory (top)

Flash memory (bottom)

Description

Offset

Data

Offset

Data

(P+23)h = 12Dh

02h

(P+23)h = 12Dh

02h

Number of Bank Regions within the device

Table 39.

Bank and Erase Block region 1 information

M58LT128HST (top)

M58LT128HSB

(bottom)

Description

Offset

Data

Offset

Data

(P+24)h = 12Eh

0Fh

(P+24)h = 12Eh

01h

Number of identical banks within Bank Region 1

(P+25)h = 12Fh

00h

(P+25)h = 12Fh

00h

(P+26)h = 130h

11h

(P+26)h = 130h

11h

Number of program or erase operations allowed

in Bank Region 1:

Bits 0-3: Number of simultaneous program

operations

Bits 4-7: Number of simultaneous erase

operations

(P+27)h = 131h

00h

(P+27)h = 131h

00h

Number of program or erase operations allowed

in other banks while a bank in same region is

programming

Bits 0-3: Number of simultaneous program

operations

Bits 4-7: Number of simultaneous erase

operations

(P+28)h = 132h

00h

(P+28)h = 132h

00h

Number of program or erase operations allowed

in other banks while a bank in this region is

erasing

Bits 0-3: Number of simultaneous program

operations

Bits 4-7: Number of simultaneous erase

operations

(P+29)h = 133h

01h

(P+29)h = 133h

02h

Types of erase block regions in Bank Region 1

n = number of erase block regions with

contiguous same-size erase blocks.

Symmetrically blocked banks have one blocking

region(2).

(P+2A)h = 134h

07h

(P+2A)h = 134h

03h

Bank Region 1 Erase Block Type 1 Information

Bits 0-15: n+1 = number of identical-sized erase

blocks

Bits 16-31: n×256 = number of bytes in erase

block region

(P+2B)h = 135h

00h

(P+2B)h = 135h

00h

(P+2C)h = 136h

00h

(P+2C)h = 136h

80h

(P+2D)h = 137h

02h

(P+2D)h = 137h

00h

(P+2E)h = 138h

64h

(P+2E)h = 138h

64h

Bank Region 1 (Erase Block Type 1)

Minimum block erase cycles × 1000

(P+2F)h = 139h

00h

(P+2F)h = 139h

00h

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