MX98725 Ver la hoja de datos (PDF) - Macronix International

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MX98725

SINGLE CHIP FAST ETHERNET NIC CONTROLLER

Macronix International 

MX98725

5.2.5 STATUS REGISTER ( CSR5 )

31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0

MPI-Magic Packet Interrupt

LC-Link Change

EB-Error Bits

TS-Transmit Process State

RS-Receive Process State

NIS-Normal Interrupt Summary

AIS-Abnormal Interrupt Summary

ERI-Early Receive Interrupt

FBE-Fatal Bus Error

LF-Link Fail

GTE-General Purpose Timer Expired

ETI-Early Transmit Interrupt

RWT-Receive Watchdog Timeout

RPS-Receive Process Stopped

RU-Receive Buffer Unavailable

RI-Receive Interrupt

LPACI-Link Pass/Autonegotiation

Completed Interrupt

UNF-Transmit Underflow

TJT-Transmit Jabber Timeout

TU-Transmit Buffer Unavailable

TPS-Transmit Process Stopped

TI-Transmit Interrupt

Field

28

27

Name

MPI

LC

25:23 EB

22:20 TS

19:17 RS

16

NIS

15

AIS

14

ERI

13

FBE

12

LF

11

GTE

Description

Magic packet received interrupt. Valid only if CSR16<22> bit is set.

100 Base-TX link status has changed either from pass to fail or fail to pass.

Read CSR12<1> for 100 Base-TX link status.

Error Bits, read only, indicating the type of error that casued fatal bus error.

Transmit Process State, read only bits indicating the state of transmit process.

Receive Process State, read only bits indicating the state of receive process.

Normal Interrupt Summary, is the logical OR of CSR5<0>, CSR5<2> and CSR5<6> and

CSR5<28>.

Abnormal Interrupt Summary, is the logical OR of CSR5<1>, CSR5<3>, CSR5<5>,

CSR5<7>, CSR5<8>, CSR5<9>, CAR5,10>, CSR5<11> and CSR5<13>, CSR5<27>.

Early receive interrupt, indicating the first buffer has been filled in ring mode, or 64 bytes

has been received in chain mode.

Fatal Bus Error, indicating a system error occured, MX98725 will disable all bus access.

Link Fail, indicates a link fail state in 10 Base-T port.This bit is valid only when CSR6<18>=0,

CSR14<8>=1, and CSR13<3>=0.

General Purpose Timer Expired, indicating CSR11 counter has expired.

P/N:PM0488

REV. 1.7, SEP. 15, 1998

14

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