m36w432b STMicroelectronics, m36w432b Datasheet - Page 50

• Manufacturer Part Number: m36w432b
• Description: 32 Mbit 2mb X16, Boot Block Flash Memory And 4 Mbit 256k X16 Sram, Multiple Memory Product
• Manufacturer: STMicroelectronics

M36W432T, M36W432B
Figure 26. Double Word Program Flowchart and Pseudo Code
Note: 1. Status check of b1 (Protected Block), b3 (V
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2. If an error is found, the Status Register must be cleared before further Program/Erase operations.
3. Address 1 and Address 2 must be consecutive addresses differing only for bit A0.
a sequence.
Write Address 1
Write Address 2
Read Status
& Data 1 (3)
& Data 2 (3)
Write 30h
Register
b7 = 1
b3 = 0
b4 = 0
b1 = 0
Start
End
YES
YES
YES
YES
NO
NO
NO
NO
Program to Protected
Block Error (1, 2)
V PPF Invalid
Error (1, 2)
Error (1, 2)
Program
PPF
Invalid) and b4 (Program Error) can be made after each program operation or after
double_word_program_command (addressToProgram1, dataToProgram1,
{
if (status_register.b3==1) /*V PPF invalid error */
if (status_register.b4==1) /*program error */
if (status_register.b1==1) /*program to protect block error */
}
error_handler ( ) ;
error_handler ( ) ;
error_handler ( ) ;
do {
writeToFlash (any_address, 0x30) ;
writeToFlash (addressToProgram1, dataToProgram1) ;
writeToFlash (addressToProgram2, dataToProgram2) ;
the Program command*/
} while (status_register.b7== 0) ;
status_register=readFlash (any_address) ;
/* EF or GF must be toggled*/
/*Memory enters read status state after
addressToProgram2, dataToProgram2)
/*see note (3) */
/*see note (3) */
AI05223