S29GL032M10TAIR40 Spansion Inc., S29GL032M10TAIR40 Datasheet - Page 118

• Manufacturer Part Number: S29GL032M10TAIR40
• Description: IC,EEPROM,NOR FLASH,2MX16/4MX8,CMOS,TSSOP,48PIN,PLASTIC
• Manufacturer: Spansion Inc.

118
DQ2: Toggle Bit II
The “Toggle Bit II” on DQ2, when used with DQ6, indicates whether a particular
sector is actively erasing (that is, the Embedded Erase algorithm is in progress),
or whether that sector is erase-suspended. Toggle Bit II is valid after the rising
edge of the final WE# pulse in the command sequence.
N o t e :
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.
No
Figure 8. Toggle Bit Algorithm
S29GLxxxM MirrorBit
Complete, Write
Reset Command
Read DQ7–DQ0
Read DQ7–DQ0
Read DQ7–DQ0
Program/Erase
Operation Not
Toggle Bit
Toggle Bit
DQ5 = 1?
= Toggle?
= Toggle?
START
Twice
Yes
Yes
Yes
P r e l i m i n a r y
TM
Flash Family
Operation Complete
No
No
Program/Erase
S29GLxxxM_00A5 April 30, 2004