A d v a n c e I n f o r m a t i o n
START
Read DQ7–DQ0
Read DQ7–DQ0
No
Toggle Bit
= Toggle?
Yes
No
DQ5 = 1?
Yes
Read DQ7–DQ0
Twice
Toggle Bit
= Toggle?
No
Yes
Program/Erase
Operation Not
Program/Erase
Operation Complete
Complete, Write
Reset Command
Note: The system should recheck the toggle bit even if DQ5 = 1 because the toggle bit may
stop toggling as DQ5 changes to 1. See the subsections on DQ6 and DQ2 for more information.
Figure 8. Toggle Bit Algorithm
April 22, 2005 S29GL-A_00_A3
S29GL-A MirrorBit™ Flash Family
59