EN29LV800J
Flowchart 5. DATA Polling
Algorithm
Start
Read Data
Yes
DQ7 = Data?
No
No
DQ5 = 1?
Yes
Read Data (1)
Notes:
(1) This second read is necessary in case the
first read was done at the exact instant when
the status data was in transition.
DQ7 = Data?
No
Fail
Yes
Pass
Flowchart 6. Toggle Bit Algorithm
Notes:
(1) This second set of reads is necessary in case
the first set of reads was done at the exact
instant when the status data was in transition.
Start
Read Data twice
No
DQ6 = Toggle?
Yes
No
DQ5 = 1?
Yes
Read Data twice (2)
DQ6 = Toggle?
Yes
Fail
No
Pass
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Rev 0.1 Release Date: 2002/01/30
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