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CS8920A Datasheet(PDF) 49 Page - Cirrus Logic

Part # CS8920A
Description  CRYSTAL LAN ISA PLUG-AND-PLAY ETHERNET CONTROLLER
PDF  144 Pages
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Manufacturer  CIRRUS [Cirrus Logic]
Direct Link  http://www.cirrus.com
Logo CIRRUS - Cirrus Logic

CS8920A Datasheet(HTML) 49 Page - Cirrus Logic

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Status and Event Bits
Register
F
E
DCB
A
9
8
7
6
Number
(Offset)
Name
Reserved (register contents undefined)
2
Event Register for the event that caused an interrupt
0120h
ISQ
EWAKE
event
Extra
data
Runt
CRC
error
Broad
cast
Individual
Adr
Hashed
RxOK
Dribble
bits
IAHash
4
(0124h)
RxEvent
Hash Table Index
(alternate RxEvent meaning if Hashed = 1 and RxOK =1)
Hashed
RxOK
Dribble
bits
IAHash
4
(0124h)
RxEvent
alternate
Reserved (register contents undefined)
6
16coll
Number of Tx collisions
Jabber
Out-of-
window
TxOK
SQE
error
Loss-of-
CRS
8
(0128h)
TxEvent
Reserved (register contents undefined)
A
RxDest
Rx128
RxMiss
TxUnder
run
Rdy4Tx
RxDMA
Frame
SWintx
C
(012Ch)
BufEvent
Reserved (register contents undefined)
E
10-bit Receive Miss (RxMISS) counter, cleared when read
10
(0130h)
RxMISS
10-bit Transmit Collision (TxCOL) counter, cleared when read
12
(0132h)
TxCOL
CRS
Polarity
OK
10BT
AUI
LinkOK
14
(0134h)
LineST
EEsize
EEPROM
OK
EEPROM
present
SIBUSY
INITD
PnP
Disable
16
(0136h)
SelfST
Rdy4Tx
NOW
TxBid
Err
18
(0138h)
BusST
Reserved (register contents undefined)
1A
10-bit AUI Time Domain Reflectometer (TDR) counter, cleared when read
1C
(013Ch)
TDR
FDX
Active
HDX
Active
Link Fault
Flp Link
Good
Flp Link
Auto
Neg Busy
1E
(013Eh)
AutoNeg
ST
Figure 4.2. Status and Control Register Summary
CS8920A
DS238PP2
49



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