MX98715 Ver la hoja de datos (PDF) - Macronix International

Número de pieza

componentes Descripción

Lista de partido

MX98715

SINGLE CHIP FAST ETHERNET NIC CONTROLLER - CRYSTAL VERSION

Macronix International 

MX98715AEC-C

Field

13

12

11:10

9

7

6

5

4

3

2

1

0

Name

ST

FC

LOM

FD

PM

PR

SB

IF

PB

HO

SR

HP

Description

Start/Stop Transmission Command, set to place transmission process in running state

and will try to transmit current descriptor in transmit list. When reset, transmit process is

placed in stop state.

Force Collision Mode, used in collision logic test in internal loopback mode, set to force

collision during next transmission attempt. This can result in excessive collision reported

in TDES0<8> if 16 or more collision.

Loopback Operation Mode, see table 5.2.6.

Full-Duplex Mode, set for simultaneous transmit and receive operation, heart beat check

is disabled, TDES0<7> should be ignored, and internal loopback is not allowed. This bit

controls the value of bit 6 of link code word .

Pass All Multicast, set to accept all incoming frames with a multicast destination address

are received. Incoming frames with physical address are filtered according to the CSR6<0>

bit.

Promiscuous Mode, any incoming valid frames are accepted, default is reset and not

affected by software reset.

Start/Stop Backoff Counter, when reset, the backoff timer is not affected by the network

carrier activity. Otherwise, timer will start counting when carrier drops.

Inverse Filtering, read only bit, set to operate in inverse filtering mode, only valid during

perfect filtering mode.

Pass Bad Frames, set to pass bad frame mode, all incoming frames passed the address

filtering are accepted including runt frames, collided fragments, truncated frames caused

by FIFO overflow.

Hash-Only Filtering Mode , read only bit, set to operate in imperfect filtering mode for both

physical and multicast addresses.

Start/Stop Receive, set to place receive process in running state where descriptor

acquisition is attempted from current position in the receive list. Reset to place the

receive process in stop state.

Hash/Perfect Receive Filtering Mode, read only bit, set to use hash table to filter multicast

incoming frames. If CSR6<2> is also set, then the physical addresses are

imperfect address filtered too. If CSR6<2> is reset, then physical addresses are perfect

address filtered, according to a single physical address as specified in setup frame.

P/N:PM0655

REV. 0.3, MAY. 04, 2000

20

Share Link: