TNETX3150 datasheet(47/113 Pages) TI1

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TNETX3150/TNETX3150A

ThunderSWITCH™ 15-PORT 10-/100-MBIT/S ETHERNET™ SWITCH

SPWS027F – FEBRUARY 1997 – REVISED SEPTEMBER 1997

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

system NMON register at 0x00A2

BIT

Reserved

MONRXTX

MONWIDE

NMON

Initial Values After Reset

BIT

NAME

FUNCTION

7–6

Reserved

MONRXTX

Selection of RX or TX signals when monitoring ports 00, 01, and 02 operating in nibble-interface format

Selection of monitor-port format width. When NMON = 0, the interface provides the SNI data format (only available

for ports operating in SNI). When MONWIDE = 1:

• The NMON interface is configured for nibble (4-bit) data. If MONWIDE = 1 when a port is operating in SNI

mode, only NMON00 is driven with data (NMON (01–03) are undriven).

• NMON06 is driven with an indication of the speed of the port; 0 = 10 Mbit/s, 1 = 100 Mbit/s.

MONWIDE

NMON Terminal Name

MONWIDE = 0

MONRXTX = X

MONWIDE = 1

MONRXTX = 0

MONWIDE =1

MONRXTX = 1

MONWIDE

NMON00

NMON01

NMON02

NMON03

NMON04

NMON05

NMON06

MXXRXD

MXXCRS

MXXRCLK

MXXTXD

MXXTXEN

MXXTCLK

MXXCOL

MXXRXD(0)

MXXRXD(1)

MXXRXD(2)

MXXRXD(3)

MXXRXDV

MXXRCLK

MXXSPEED

MXXTXD(0)

MXXTXD(1)

MXXTXD(2)

MXXTXD(3)

MXXTXEN

MXXTCLK

MXXSPEED

This nibble controls which port is monitored when using the NMON function.

NMON FIELD CODE

DESCRIPTION

3–0

NMON

0000–1110

Ports 00–14 selected for monitoring. Port 00 (uplink) can

be monitored only when M00UPLINK is high.

1111

Disables the NMON function

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