M58PR256J datasheet(42/114 Pages) STMICROELECTRONICS

42 / 114 page

Program operations

M58PR256J, M58PR512J

42/114

Figure 5.

Program Regions configured in Control or Object Program mode

5.5

Program methods

The device supports two types of program methods:

●

Single Word Program method, which is used to program a single Word to a specific

address of the memory array.

●

Buffered Program methods, which can be split into two different methods:

–

a Buffer Program method that uses the device's Write Buffer to speed up

programming. The data is written into the Write Buffer and then programmed to

the specified Block address.

–

a Buffer Enhanced Factory Program method, developed to speed up programming

in manufacturing environments where the programming time is critical. The data is

written in the Write Buffer and then programmed to the specified Block.

The following sections describe the relationship between program commands and Program

methods in detail. See Table 12: Relationships between Program methods and Program

modes and Table 11: Program methods available with each Program mode.

Program Region 0

1 KByte (512B Programmable)

128 KWord BLOCK

Data 2

Data 4

F F F F F F F F

SEGMENT 30

Data (n – 4)

Data (n – 2)

Data n

SEGMENT 3

SEGMENT 2

SEGMENT 1

SEGMENT 0

...

Program Region in Control Program Mode

F F F F F F F F

A Halves

(A3 = 0)

B Halves

(A3 = 1)

...

Object

1 KByte

ai10135

SEGMENT 31

Program Region 1

1 KByte (512B Programmable)

Program Region 254

1 KByte (512B Programmable)

Program Region 255

1 KByte (512B Programmable)

Data 1

Data 3

Data (n – 3)

Data (n – 1)

SEGMENT 30

SEGMENT 3

SEGMENT 2

SEGMENT 1

SEGMENT 0

SEGMENT 31

F F F F F F F F F F F F F F F F

F F F F F F

Program Region in Object Program Mode

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