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W39V080FA Datasheet, PDF (16/35 Pages) Winbond – 1M × 8 CMOS FLASH MEMORY WITH FWH INTERFACE
6.18 Embedded Toggle Bit Algorithm
W39V080FA
Start
Read Byte
(DQ0-DQ7)
Read Byte
(DQ0-DQ7)
No
Toggle Bit
=Toggle ?
Yes
No
DQ5 = 1 ?
Yes
Read Byte
(DQ0-DQ7) Twin
No
Toggle Bit
=Toggle ?
Fail
Pass
Note: Recheck toggle bit because it may stop toggling as DQ5 changes to “1” .
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