CS8900A
Crystal LAN™ Ethernet Controller
Control and Configuration Bits
Register
F
E
D
C
B
A
9
8
7
6 Number Name
(Offset)
Reserved (register contents undefined)
1
Extra RuntiE CRC Buffer AutoRx RxDMA RxOKiE StreamE Skip_1 3 RxCFG
dataiE
erroriE CRC DMAE only
(0102h)
Extra RuntA CRC Broad Individ Multi RxOKA Promis IAHash 5 RxCTL
dataA
errorA castA ualA castA
cuousA A (0104h)
16colli
E
AnycolliE Jab Out-of- TxOKiE SQErro- Loss-of- 7 TxCFG
beriE windowiE
riE CRSiE (0106h)
TxPad- Inhibit-
Dis CRC
Onecoll Force
TxStart
9 TxCMD
(0108h)
RxD-
estiE
Miss TxCol Rx128iE Rxmis- TxUnder- Rdy4Txi RxD- SWint-X B BufCFG
OvfloiE OvfloiE
siE
runiE
E
MAiE
(010Ah)
Reserved (register contents undefined)
D-11
LoRx 2-part Polarity Mod
Squelch DefDis Dis BackoffE
AutoAUI/ AUIonly Ser
Ser
13
Line
10BT
TxON RxON (0112h) CTL
HCB1 HCB0 HC1E HC0E
HWStan HW SW Sus-
dbyE SleepE pend
RESET 15 SelfCTL
(0114h)
Enabl
e IRQ
RxDMA IOCH DMA Memo- UseSA DMAex-
size RDYE Burst ryE
tend
Reset 17 BusCTL
RxDMA (0116)
FDX
Disable AUIloop ENDEC
Backoff
loop
Disable
LT
19 TestCTL
(0118)
Reserved (register contents undefined)
1B -1F
Table 16. Status and Control Register Descriptions
CIRRUS LOGIC PRODUCT DATASHEET
52
DS271F4