Invoking Flash Memory Automatic Algorithm - Fujitsu MB95630H Series Hardware Manual

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MB95630H Series

Invoking Flash Memory Automatic Algorithm

There are four commands that invoke the Flash memory automatic algorithm:

read/reset, program, chip erase, and sector erase. The sector erase command

is capable of suspending and resuming sector erase.

■ Command Sequence Table

Table 25.3-1 lists commands used in programming/erasing Flash memory.

Table 25.3-1

Command Sequence

1st bus write

Sector erase

bypass entry

bypass reset

Sector erase suspend

Sector erase resume

Erase sector add

PA : Program address

SA : Sector address (Specify any address in a sector.)

PD : Program data

: The upper four bits represent an address in a sector to which data can be programmed.

: Any address value

any : Any program data

MN702-00009-1v0-E

2nd bus write

Programming data "0xB0" to the address "0xUXXX" suspends erasing during sector erase.

Programming data "0x30" to the address "0xUXXX" resumes suspended sector erase.

Programming data "0x30" to the SA adds a new sector to be erased.

FUJITSU SEMICONDUCTOR LIMITED

CHAPTER 25 DUAL OPERATION FLASH MEMORY

25.3 Invoking Flash Memory Automatic

3rd bus write

4th bus write

5th bus write

6th bus write