afs600 Actel Corporation, afs600 Datasheet - Page 57

• Manufacturer Part Number: afs600
• Description: Actel Fusion Programmable System Chips Mixed-signal Family With Optional Arm Support
• Manufacturer: Actel Corporation

Program operations that result in a STATUS value of '01'
do not modify the addressed page. For all other values of
STATUS, the addressed page is modified.
Program errors include the following:
Figure 2-35 • FB Program Waveform
Note: OVERWRITEPAGE is only sampled when the PROGRAM or ERASEPAGE pins are asserted. OVERWRITEPAGE is
ignored in all other operations.
1. Attempting to program a page that is Overwrite
2. Attempting to program a page that is not in the
3. Attempting
OVERWRITEPROTECT
PAGELOSSPROTECT
Protected (STATUS = '01')
Page Buffer when the Page Buffer has entered
Page Loss Protection Mode (STATUS = '01')
OVERWRITEPAGE set when the page addressed
has been Overwrite Protected (STATUS = '01')
OVERWRITEPAGE
STATUS[1:0]
ADDR[17:0]
PROGRAM
BUSY
CLK
to
perform
0
Page
a
program
A d v an c ed v1 . 4
with
The waveform for a Program operation is shown in
Figure
4. The Write Count of the page programmed
5. The ECC Logic determining that there is an
6. Attempting to program a page that is not in the
7. Attempting to program the page in the Page
exceeding the Write Threshold defined in the part
specification (STATUS = '11')
uncorrectable error within the programmed page
(STATUS = '10')
Page Buffer when OVERWRITEPAGE is not set and
the page in the Page Buffer is modified
(STATUS = '01')
Buffer when the Page Buffer is not modified
2-35.
Actel Fusion Programmable System Chips
Valid
2-43