CS8900-CQ3 Cirrus Logic, CS8900-CQ3 Datasheet - Page 49

• Manufacturer Part Number: CS8900-CQ3
• Description: Crystal LAN ISA Ethernet Controller
• Manufacturer: Cirrus Logic

DS271PP3
operations. It is possible to set either, neither, or
both bits. The four corresponding pairs of bits are:
If one of the above Interrupt Enable bits is set and
the corresponding Accept bit is clear, the CS8900A
generates an interrupt when the associated receive
CS8900A
Crystal LAN™ ISA Ethernet Controller
Out-of-windowiE (TxCFG) Out-of-window (TxEvent)
Loss-of-CRSiE (TxCFG)
TxUnderruniE (BufCFG)
TxColOvfloiE (BufCFG)
MissOvfloiE (BufCFG)
ExtradataiE (RxCFG)
CRCerroriE (RxCFG)
Interrupt Enable Bit
SQEerroriE (TxCFG)
Rdy4TxiE (BufCFG)
RxDMAiE (BufCFG)
RxDestiE (BufCFG)
RxMissiE (BufCFG)
AnycolliE (TxCFG)
Rx128iE (BufCFG)
JabberiE (TxCFG)
RxOKiE (RxCFG)
16colliE (TxCFG)
TxOKiE (TxCFG)
IE Bit in RxCFG
(register name)
RuntiE (RxCFG)
Table 14. Interrupt Enable Bits and Events
ExtradataiE
CRCerroriE
RxOKiE
RuntiE
TxCOL counter overflows
RxDMAFrame (BufEvent)
“Number-of Tx-collisions”
Loss-of-CRS (TxEvent)
TxUnderrun (BufEvent)
counter is incremented
RxMISS counter over-
Event Bit or Counter
Extradata (RxEvent)
CRCerror (RxEvent)
SQEerror (TxEvent)
RxMISS (BufEvent)
Rdy4Tx (BufEvent)
RxDest (BufEvent)
Rx128 (BufEvent)
Jabber (TxEvent)
RxOK (RxEvent)
(register name)
TxOK (TXEvent)
16coll (TxEvent)
flows past 1FFh
A Bit in RxCTL
Runt (RxEvent)
CIRRUS LOGIC PRODUCT DATA SHEET
ExtradataA
CRCerrorA
past 1FFh
(TxEvent)
RxOKA
RuntA
event occurs, but then does not accept the receive
frame (the length of the receive frame is set to ze-
ro).
The other five Accept bits in RxCTL are used for
destination address filtering (see Section 5.3 on
page 87). The Accept mechanism is explained in
more detail in Section 5.2 on page 79.
4.4.4 Status and Control Register Summary
The table on the following page (Table 15) pro-
vides a summary of the Status and Control regis-
ters. Section 4.4.4 on page 49 gives a detailed
description of each Status and Control register.
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