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12 glan, Glan, Digital-logic ag – Compaq SmartCore Express SMA200 User Manual

Page 36

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DIGITAL-LOGIC AG

SMA200 Manual V1.0

36

5.4.12. GLAN

Signal

BUS

Type Description

On Module
Termination

Ext. Ter-
mination
Needed

Max.
Length
in mm

Ohm

Matched
Length in
mm

GLAN_TX +/-

GLAN

Dif

GLAN TX pair for 1GE

-

100nF

250

95

0.5

GLAN_RX +/- GLAN

Dif

GLAN RX pair for 1GE

-

100nF

250

95

0.5

GLAN-CLK +/- GLAN

Dif

GLAN reference clock
pair

-

33 Ohm

250

50

-

LCI_TXD[2..0] LCI

3.3V

Out

3x TX signal for
10/100MB

-

-

250

50

-

LCI_RXD[2..0] LCI

3.3V

In

3x RX signal for
10/100MB

-

-

250

50

-

LCI_RST

LCI

3.3V

Out

LAN reset/synch

-

-

250

50

-

If the signals are not used:

Unused GLAN /LCI interfaces may be open.

Remarks:

The 10nF capacitors 0402 need to be placed directly at the SATA connector.
Maximum via count is 2 per signal.
BUS to BUS spacing is min. 20mil = 0.5mm
Pair to Pair spacing is min. 35mil = 0.9mm

EMV/EMI filters:

Are not needed.