S29GL032A10BAIR12 SPANSION [SPANSION], S29GL032A10BAIR12 Datasheet - Page 55

• Manufacturer Part Number: S29GL032A10BAIR12
• Description: 64 MEGABIT 32MEGABIT 3.0 BOLT ONLY PAGE MODE FLASH MEMORY
• Manufacturer: SPANSION [SPANSION]

Notes:
1. See
2. See the section on DQ3 for information on the sector erase timer.
January 28, 2005 S29GLxxxA_00_A2
Table 25
Erase Suspend/Erase Resume Commands
The Erase Suspend command, B0h, allows the system to interrupt a sector erase
operation and then read data from, or program data to, any sector not selected
for erasure. This command is valid only during the sector erase operation, includ-
ing the 50 µs time-out period during the sector erase command sequence. The
Erase Suspend command is ignored if written during the chip erase operation or
Embedded Program algorithm.
When the Erase Suspend command is written during the sector erase operation,
the device requires a typical of 5 µs (maximum of 20 µs) to suspend the erase
operation. However, when the Erase Suspend command is written during the sec-
tor erase time-out, the device immediately terminates the time-out period and
suspends the erase operation.
After the erase operation has been suspended, the device enters the erase-sus-
pend-read mode. The system can read data from or program data to any sector
not selected for erasure. (The device “erase suspends” all sectors selected for
erasure.) Reading at any address within erase-suspended sectors produces sta-
tus information on DQ7–DQ0. The system can use DQ7, or DQ6 and DQ2
together, to determine if a sector is actively erasing or is erase-suspended. Refer
to the Write Operation Status section for information on these status bits.
After an erase-suspended program operation is complete, the device returns to
the erase-suspend-read mode. The system can determine the status of the pro-
gram operation using the DQ7 or DQ6 status bits, just as in the standard word
and
Table 26
A d v a n c e
for program command sequence.
No
S29GLxxxA MirrorBit™ Flash Family
Command Sequence
Data Poll to Erasing
Erasure Completed
Bank from System
Figure 6. Erase Operation
I n f o r m a t i o n
Write Erase
(Notes 1, 2)
Data = FFh?
START
Yes
Embedded
Erase
algorithm
in progress
53