CS8900-CQ3 View Datasheet(PDF) - Cirrus Logic
Part Name
Description
MFG CO.
'CS8900-CQ3' PDF : 138 Pages View PDF
CS8900A
Crystal LAN™ ISA Ethernet Controller
An enabled interrupt occurs.
The selected interrupt
request pin is driven high
(active) if not already high.
The host reads the ISQ.
The selected interrupt
request pin is driven low.
EXIT.
Yes
Interrupts
re-enabled.
(Interrupts
will be
disabled
for at least
1.6 us.)
ISQ = 0000h?
No
Which
Event
report
type?
RxEvent
Process applicable
RxEvent bits: Extradata,
Runt, CRCerror, RxOK.
TxEvent
Process applicable
TxEvent bits: 16coll, Jabber,
Out-of-window, TxOK.
BufEvent
Process applicable BufEvent
bits: RxDest, Rx128, RxMiss,
TxUnderrun, Rdy4Tx,
RxDMAFrame, SWint.
RxMISS
Process RxMISS counter.
TxCOL
Process TxCOL counter.
None of the above
Figure 19. Interrupt Status Queue
Service
Default
CIRRUS LOGIC PRODUCT DATASHEET
DS271PP4
79
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