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DS33M33DK

Rev: 102108 6 of 48

network traffic is sent out the default adapter, which usually is the adapter that has recently had connection

to a live network.

5. Jumpers and Connectors

Jumpers and connectors are listed in Table 5-1. They are listed in order of appearance on the PCB from left to

right, top to bottom (as viewed with SONET connectors port on the left side of the board).

Table 5-1. Jumpers and Connectors

SILKSCREEN

REFERENCE

FUNCTION

BASIC

SETTING

SCHEMATIC

PAGE

DESCRIPTION

J05 Overhead Test Points

J05.5+J05.6

Jumpered

Jumpers to connect overhead

CPLD to DS33M33. Connector is

marked to show that the odd

numbered pins belong to the

CPLD.

J02 Spare Connector Not used 23

Spare pins connected to overhead

CPLD.

J08 Overhead Test Points — 2

Jumpers to connect overhead

CPLD to DS33M33. Connector is

marked to show that the odd

numbered pins belong to the

CPLD.

JB01

(bottom of PCB)

JTAG — 24 CPLD JTAG header.

Jumper

P2+1 (low)

If auto negotiation is enabled, this

setting advertises capability for

10/100/1000 speeds. If auto

negotiation is disabled, then this

setting forces 10Mb mode.

Jumper

P2+3 (high)

If auto negotiation is enabled this

setting advertises capability for

10/100 speeds. If auto negotiation

is disabled, this setting is not legal.

JP05 + JP02

Bias PHY

Speed1 + Speed0

Jumper

P2+3(high)

P2+1 (low)

If auto negotiation is enabled, this

setting advertises capability for

1000 speeds. If auto negotiation is

disabled, this setting forces

1000Mb mode.

Note: In Gigabit mode the DS33M33 Mac must be configured with indirect Mac register MACCR bit 15 set.

JP03 Bias PHY ANEN

Jumper

P2+3 (high)

Jumper P2+3 to enable auto

negotiation.

JP04 Bias PHY Duplex

Jumper

P2+3 (high)

Jumper P2+3 to enable full duplex;

jumper P1.2 to force half duplex.

JP06 Bias PHY ManMDIX

Jumper

P2+1 (high)

Default MDIX setting P2+3 PHY is

set to straight mode; P2+1 PHY is

in crossover mode.

JP07 Bias PHY NonIEEE

Jumper

P2+3 (high)

Jumper P2+3 to enable IEEE

compliant operation.

JP08 Bias PHY MultiEn

Jumper

P2+1 (high)

PHY advertisement setting.

P2+3 selects multiple node priority

(switch or hub); P1+2 selects single

node priority (NIC).

JP09 Bias PHY MdixEn

Jumper

P2+1 (high)

P2+3 disables pair swap mode,

P2+1 enables pair swap mode

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