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X28C010FM-12 View Datasheet(PDF) - Xicor -> Intersil

Part Name
Description
MFG CO.
X28C010FM-12
Xicor
Xicor -> Intersil Xicor
'X28C010FM-12' PDF : 25 Pages View PDF
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X28C010
The Toggle Bit I/O6
Figure 4. Toggle Bit Bus Sequence
LAST
WE WRITE
CE
OE
I/O6
VOH
*
VOL
* Beginning and ending state of I/O6 will vary.
Figure 5. Toggle Bit Software Flow
LAST WRITE
LOAD ACCUM
FROM ADDR n
COMPARE
ACCUM WITH
ADDR n
HIGH Z
*
X28C010
READY
3858 FHD F14
The Toggle Bit can eliminate the software housekeeping
chore of saving and fetching the last address and data
written to a device in order to implement DATA Polling.
This can be especially helpful in an array comprised of
multiple X28C010 memories that is frequently updated.
Toggle Bit Polling can also provide a method for status
checking in multiprocessor applications. The timing
diagram in Figure 4 illustrates the sequence of events on
the bus. The software flow diagram in Figure 5 illustrates
a method for polling the Toggle Bit.
NO
COMPARE
OK?
YES
X28C010
READY
3858 FHD F15
5
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