M28W640HCB70ZB6E NUMONYX, M28W640HCB70ZB6E Datasheet - Page 59

• Manufacturer Part Number: M28W640HCB70ZB6E
• Manufacturer: NUMONYX

Specifications of M28W640HCB70ZB6E

• Cell Type: NOR
• Density: 64Mb
• Access Time (max): 70ns
• Interface Type: Parallel
• Boot Type: Bottom
• Address Bus: 22b
• Operating Supply Voltage (typ): 3.3V
• Operating Temp Range: -40C to 85C
• Package Type: TFBGA
• Sync/async: Asynchronous
• Operating Temperature Classification: Industrial
• Operating Supply Voltage (min): 2.7V
• Operating Supply Voltage (max): 3.6V
• Word Size: 16b
• Number Of Words: 4M
• Supply Current: 18mA
• Mounting: Surface Mount
• Pin Count: 48
• Lead Free Status / RoHS Status: Compliant

Appendix C
Figure 15. Program flowchart and pseudocode
1. Status check of b1 (protected block), b3 (V
2. If an error is found, the Status Register must be cleared before further Program/Erase controller operations.
after a sequence.
Write 40h or 10h
Write Address
Read Status
Register
& Data
b7 = 1
b3 = 0
b4 = 0
b1 = 0
Start
End
YES
YES
YES
YES
NO
NO
NO
NO
Flowcharts and pseudocodes
Program to Protected
Block Error (1, 2)
V PP Invalid
Error (1, 2)
Error (1, 2)
Program
PP
invalid) and b4 (program error) can be made after each program operation or
program_command (addressToProgram, dataToProgram) {:
if (status_register.b3==1) /*VPP invalid error */
if (status_register.b4==1) /*program error */
if (status_register.b1==1) /*program to protect block error */
}
do {
error_handler ( ) ;
error_handler ( ) ;
error_handler ( ) ;
writeToFlash (any_address, 0x40) ;
/*or writeToFlash (any_address, 0x10) ; */
writeToFlash (addressToProgram, dataToProgram) ;
/*Memory enters read status state after
the Program Command*/
} while (status_register.b7== 0) ;
status_register=readFlash (any_address) ;
/* E or G must be toggled*/
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