M50FLW080A datasheet(56/64 Pages) STMICROELECTRONICS

部件名	M50FLW080A

功能描述	8 Mbit (13 x 64KByte Blocks 3 x 16 x 4KByte Sectors), 3V Supply Firmware Hub / Low Pin Count Flash Memory

PDF	64 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

标志

56 / 64 page

Flowcharts and pseudo codes

M50FLW080A, M50FLW080B

56/64

Appendix B

Flowcharts and pseudo codes

Figure 21.

Program flowchart and pseudo code

A Status check of SR1 (Protected Block/Sector), SR3 (VPP invalid) and SR4 (Program Error) can be made

after each Program operation by following the correct command sequence.

If an error is found, the Status Register must be cleared before further Program/Erase Controller

operations.

Write 40h or 10h

AI09092

Start

Write Address

and Data

Read Status

YES

SR7 = 1

YES

SR3 = 0

SR4 = 0

VPP Invalid

Error (1, 2)

Program

Error (1, 2)

Program command:

– Write 40h or 10h

– Write Address and Data

(memory enters read status state after

the Program command)

do:

– Read Status Register

– If SR7=0 and a Program/Erase Suspend

command has been executed

– SR7 is set to 1

– Enter suspend program loop

If SR3 = 1,

– Enter the "VPP invalid" error handler

If SR4 = 1,

– Enter the "Program error" error handler

YES

End

YES

SR1 = 0

Program to Protected

Block/Sector Error (1, 2)

If SR1 = 1,

– Enter the "Program to protected

block/sector" error handler

Suspend

Loop

YES

FWH/LPC

Interface

Only

M50FLW080A 数据表(PDF) 56 Page - STMicroelectronics

M50FLW080A 数据表(HTML) 56 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64

数据表下载