EN29LV400A
Flowchart 5. DATA# Polling
Algorithm
Start
Read Data
Yes
DQ7 = Data?
No
No
DQ5 = 1?
Yes
Read Data (1)
Notes:
Yes
(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
Pass
Start
Flowchart 6. Toggle Bit Algorithm
Read Data twice
No
DQ6 = Toggle?
Yes
No
DQ5 = 1?
Yes
Read Data twice (2)
Notes:
No
(2) 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.
DQ6 = Toggle?
Yes
Fail
Pass
This Data Sheet may be revised by subsequent versions
or modifications due to changes in technical specifications.
©2005 Eon Silicon Solution, Inc., www.essi.com.tw
20
Rev. A, Issue Date: 2005/01/07