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

Número de pieza

componentes Descripción

Lista de partido

MX98725

SINGLE CHIP FAST ETHERNET NIC CONTROLLER

Macronix International 

MX98725

5.2.8 MISSED FRAME COUNTER ( CSR8 )

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

Missed Frame Overflow

Missed Frame Counter

Field

16

Name

MFO

15:0 MFC

Description

Missed Frame Overflow, set when missed frame counter overflows, reset when CSR8 is

read.

Missed Frame Counter, indicates the number of frames discarded because no host

receive descriptors were available.

5.2.9 NON-VOLATILE MEMORY CONTROL REGISTER ( CSR9 )

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

LED3SEL

LED2SEL

LED1SEL

LED0SEL

RD-Read Operation

WR-Write Operation

BR-Boot ROM Select

SR-Serial ROM Select

Data-Boot ROM data

or Serial ROM control

Field

31

Name

LED3SEL

30

LED2SEL

29

LED1SEL

28

LED0SEL

14

RD

Description

0:Default value. Set LED3 as RX LED.

1: Set LED3 as Full/Half duplex LED.

0:Default value. Set LED2 as Link Speed (10/100) LED.

1: Set LED2 as Collision LED.

0:Default value. Set LED1 as Good Link LED.

1: Set LED1 as Link/Activity LED.

0:Default value. Set LED0 as Activity LED.

1: Set LED0 as Link Speed (10/100) LED.

Boot ROM/EEPROM read operation select bit.

P/N:PM0488

REV. 1.7, SEP. 15, 1998

21

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