S71AL016D SPANSION [SPANSION], S71AL016D Datasheet - Page 38

• Manufacturer Part Number: S71AL016D
• Description: Stacked Multi-Chip Product (MCP) Flash Memory and RAM
• Manufacturer: SPANSION [SPANSION]

38
DQ5: Exceeded Timing Limits
DQ5 indicates whether the program or erase time has exceeded a specified inter-
nal pulse count limit. Under these conditions DQ5 produces a “1.” This is a failure
condition that indicates the program or erase cycle was not successfully
completed.
Notes:
1. Read toggle bit twice to determine whether or not it
2. Recheck toggle bit because it may stop toggling as
is toggling. See text.
DQ5 changes to “1”. See text.
No
Figure 6. Toggle Bit Algorithm
Read Byte Twice
Complete, Write
Reset Command
Program/Erase
Operation Not
Address =VA
Address =VA
Address = VA
A d v a n c e
(DQ7–DQ0)
(DQ7–DQ0)
(DQ7–DQ0)
Read Byte
Read Byte
Toggle Bit
Toggle Bit
DQ5 = 1?
= Toggle?
= Toggle?
START
Yes
Yes
Yes
S29AL016D
(Notes
1,2)
(Note 1)
I n f o r m a t i o n
Operation Complete
No
No
Program/Erase
S29AL016D_00_A1_E August 4, 2004