S29GL128P SPANSION, S29GL128P Datasheet - Page 28

• Manufacturer Part Number: S29GL128P
• Description: Page Mode Flash Memory
• Manufacturer: SPANSION

Notes
1. See
2. See the section on DQ3 for information on the sector erase timeout.
26
No
Table 12.1 on page 61
PASS. Device returns
to reading array.
DQ3 = 1?
Yes
Poll DQ3.
Yes
No
for erase command sequence.
Write Sector Erase Cycles:
Sector Address, Data 30h
Address 555h, Data AAh
Address 2AAh, Data 55h
Address 555h, Data AAh
Address 555h, Data 80h
Address 2AAh, Data 55h
Perform Write Operation
Write Unlock Cycles:
Sector Addresses
(Recommended)
(see
Write Additional
Status Algorithm
Wait 4 ms
DQ5 = 1?
Additional
Sectors?
Done?
Yes
Figure
Select
Yes
No
Yes
7.4)
D a t a
FAIL. Write reset command
Last Sector
Selected?
to return to reading array.
S29GL-P MirrorBit
No
No
S h e e t
Figure 7.3 Sector Erase Operation
( A d v a n c e
TM
Flash Family
• Each additional cycle must be written within t
• The host system may monitor DQ3 or wait t
• No limit on number of sectors
• Commands other than Erase Suspend or selecting additional
Unlock Cycle 1
Unlock Cycle 2
Command Cycle 1
Command Cycle 2
Command Cycle 3
Specify first sector for erasure
Status may be obtained by reading DQ7, DQ6 and/or DQ2.
Error condition (Exceeded Timing Limits)
acceptance of erase commands
sectors for erasure during timeout reset device to reading array
data
I n f o r m a t i o n )
S29GL-P_00_A3 November 21, 2006
SEA
SEA
to ensure
timeout