DP83266 datasheet(70/152 Pages) NSC

70 / 152 page

70 Control Information (Continued)

Internal Event Latch Register (IELR)

The Internal Event Latch Register (IELR) reports internal errors in the Ring Engine These errors include MAC Parity errors and

inconsistencies in the Receiver and Transmitter state machines

After an internal state machine error is detected and reported (bit RSMERR for the receiver and TSMERR for the transmitter)

the Current Receive Status Register (CRS0) and Current Transmit Status Register (CTS0) continue to be updated as normal

In Diagnose mode (ModeDiag e 1) the Current Receive Status Register and Current Transmit Status Register are frozen with

the errored state until the internal state machine error condition is cleared (bit RSMERR andor TSMERR is set to Zero)

Errors internal to the Ring Engine cause a MAC

Reset

Access Rules

Address

Read

Write

028h

Always

Conditional

RES

TSM ERR

RSM ERR

RES

MPE

Bit

Symbol

Description

D7 – D4

RES

Reserved

TSMERR

Transmit State Machine Error

Indicates inconsistency in the Transmitter state machine When set

causes bit MCRST of the Function Register to be set

RSMERR

Receive State Machine Error

Indicates inconsistency in the Receiver state machine When set

causes bit MCRST of the Function Register to be set

RES

Reserved

MPE

MAC Interface Parity Error

Indicates a Parity Error on the MAC Request Data bus (the internal bus

MRD (70) between the SI and MAC blocks) when parity is enabled on the MA

Request Interface (bits

MRP of the MAC Mode Register 0 (MCMR0)) are set and pin TXACK is asserted)

DP83266 데이터시트(PDF) 70 Page - National Semiconductor (TI)

DP83266 데이터시트(HTML) 70 Page - National Semiconductor (TI)

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

데이터시트 다운로드

링크 URL