Instruction Manual

52 DS271F5
CS8900A
Crystal LAN™ Ethernet Controller
CIRRUS LOGIC PRODUCT DATASHEET
Control and Configuration Bits Register
FEDCBA9 876Number
(Offset)
Name
Reserved (register contents undefined) 1
Extra
dataiE
RuntiE CRC
erroriE
Buffer
CRC
AutoRx
DMAE
RxDMA
only
RxOKiE StreamE Skip_1 3
(0102h)
RxCFG
Extra
dataA
RuntA CRC
errorA
Broad
castA
Individ
ualA
Multi
castA
RxOKA Promis
cuousA
IAHa-
shA
5
(0104h)
RxCTL
16colli
E
AnycolliE Jab
beriE
Out-of-
windowiE
TxOKiE SQErro-
riE
Loss-of-
CRSiE
7
(0106h)
TxCFG
TxPad-
Dis
Inhibit-
CRC
Onecoll Force TxStart 9
(0108h)
TxCMD
RxDe
stiE
Miss
OvfloiE
TxCol
OvfloiE
Rx128iE Rxmis-
siE
TxUnder-
runiE
Rdy4Txi
E
RxD-
MAiE
SWint-X B
(010Ah)
BufCFG
Reserved (register contents undefined) D-11
LoRx
Squelch
2-part
DefDis
Polarity
Dis
Mod
BackoffE
Auto-
AUI/10B
T
AUIonly Ser
TxON
Ser
RxON
13
(0112h)
Line
CTL
HCB1 HCB0 HC1E HC0E HWStan
dbyE
HW
SleepE
SW Sus-
pend
RESET 15
(0114h)
SelfCTL
Enabl
e IRQ
RxDMA
size
IOCH
RDYE
DMA
Burst
Memo-
ryE
UseSA DMAex-
tend
Reset
RxDMA
17
(0116)
BusCTL
FDX Disable
Backoff
AUIloop ENDEC
loop
Disable
LT
19
(0118)
TestCTL
Reserved (register contents undefined) 1B -1F
Table 16. Status and Control Register Descriptions