Pm29F002
PMC
DEVICE OPERATIONS FLOWCHARTS (CONTINUED)
AUTOMATIC ERASE
Start
Write Chip
or Block
Erase Command
Data = FFh?
or
I/O6 Stop Toggle?
No
Yes
Erasure
Completed
BLOCK ERASE COMMAND
CHIP ERASE COMMAND
Load Data AAh
to
Load Data AAh
to
Address 555h
Address 555h
Load Data 55h
to
Load Data 55h
to
Address 2AAh
Address 2AAh
Load Data 80h
to
Load Data 80h
to
Address 555h
Address 555h
Load Data AAh
to
Address 555h
Load Data AAh
to
Address 555h
Notes:
1. Please see Software Command
Definition in Table 1 and Table
2 for block addresses.
Load Data 55h
to
Address 2AAh
Load Data 55h
to
Address 2AAh
2. Only erase one block per each
block erase cycle.
3. When the boot block lockout
feature has been enabled, the
boot block will not be erased.
Load Data 10h
to
Address 555h
Load Data 30h
to
Block Address
(3)
(1,2,3)
Chart 2. Automatic Erase Flowchart
Issue Date: March, 2001 Rev: 1.0
Programmable Microelectronics Corp.
10
PMC [ PMC-SIERRA, INC ]
