Compaq SMA200 Lvdsddcclk Lvdsddcdat, Lvdsclk + Lvdsvdden Lvdsbklctl Lvdsbklen Lvdsctlaclk

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DIGITAL-LOGIC AG

SMA200 Manual V1.0

5.4.3.LVDS

Signal

BUS

Type Description

On Module

Ext. Ter-

Termination

mination

 

Needed

Max.

Length Ohm in mm

Matched Length in mm

 

LVDS_DDCCLK

 

LVDS

 

 

 

 

 

LVDS_DDCDAT

 

LVDS

 

 

 

 

 

 

 

 

 

LVDS_DATA[0..3] +/-

 

LVDS

 

LVDS_CLK +/-

 

LVDS

 

 

 

 

 

 

 

 

 

 

 

LVDS_VDDEN

 

LVDS

 

LVDS_BKLCTL

 

LVDS

LVDS_BKLEN

LVDS

LVDS_CTLA_CLK

LVDS

LVDS_CTLB_DATA LVDS

3.3V

DDC signal

PU 10k to

-

150

55

 

 

3.3V

 

 

 

3.3V

DDC signal

PU 10k to

-

150

55

 

 

3.3V

 

 

 

 

 

 

 

 

 

Dif

LVDS data signal

-

-

150

100

Out

Connected directly to the

 

 

 

 

 

display.

 

 

 

 

Dif

LVDS clock signal

-

-

150

100

Out

Connected directly to the

 

 

 

 

 

display.

 

 

 

 

 

 

 

 

 

 

3.3V

LVDS control signal

100k pull

-

150

55

Out

To switch on/off the VDD

down

 

 

 

 

of the LVDS display.

 

 

 

 

3.3V

Connected to the LVDS

 

-

150

55

Out

display’s PWM-based

 

 

 

 

 

backlight inverter

 

 

 

 

 

module. No multi-bus

 

 

 

 

 

master mode is

 

 

 

 

 

supported.

 

 

 

 

3.3V

Connected to the LVDS

100k pull

-

150

55

Out

display’s backlight

down

 

 

 

 

inverter module switch.

 

 

 

 

3.3V

Connected to the LVDS

PU 4.7k to

-

150

55

I/O

display’s PWM-based

3.3V

 

 

 

 

backlight inverter

 

 

 

 

 

module. No multi bus

 

 

 

 

 

master mode supported.

 

 

 

 

3.3V

Connected to the LVDS

PU 4.7k to

-

150

55

I/O

display’s PWM-based

3.3V

 

 

 

 

backlight inverter

 

 

 

 

 

module.

 

 

 

 

0.5

0.5

If the signals are not used:

All these LVDS signals may be left open.

Remarks:

For the DDC signals, a voltage translator to 3.3V or 5V is needed.

Pair to Pair spacing:

35mil = 0.9mm

Pair to Pair matching:

better than 25mm

Bus to Bus spacing:

20mil = 0.5mm

Maximum via count:

0 2.

EMV/EMI filters:

 

27

Image 27
Contents SmartCore Express SMA200 About this Manual and How to Use It SMA200 ManualInitial Version Table of Contents Environmental Protection Statement PrefaceTrademarks DisclaimerLimited Two Year Warranty Recycling InformationTechnical Support CE Conformity Explanation of SymbolsApplicable Documents and Standards RoHS Commitment For Your SafetyRoHS Compatible Product Design RoHS Compliant Production ProcessWeee Application Swiss Association for Quality and Management Systems Swiss QualityOverview Standard FeaturesMathematics Coprocessor Technical SpecificationsSpecification Intel US15W Graphics Memory Controller Hub SpecificationPhysical Characteristics Specification Intel US15W SpecificationReset & Power Management Specification Power Supply SpecificationExamples of Ordering Codes Operating Environment SpecificationEMI / EMC IEC1131-2 refer MIL 461/462 Specification Options/AccessoriesBlock Diagram Dimensions & DiagramsDesign in with the smartModule Dimensions of the smartCoreExpress ModuleConnector Placement & Pin Definition on the Carrier Board Photo of the Top Side of the PCB Component Heights between Module and Carrier Board Dimensions of the Carrier Board ConnectorCOM-EXPRESS Connector Description Signal Terminology DescriptionsSignal Description Type Remarks SmartCoreExpress Connector PinoutBUS on the smartCoreExpress Connectors a / B Pins Signal Type Remarks Pin SignalType Signal BUS TypeSignal Descriptions of the Smartcoreexpress Placing an AC Coupling Capacitor on each PCIe-TX PCI-Express SmartCoreExpress Signal GroupsSupported devices SdvoLvds Lvdsddcclk LvdsddcdatLvdsclk + Lvdsvdden Lvdsbklctl Lvdsbklen Lvdsctlaclk Remarks EMV/EMI-filters USBOn Module Ext. Ter Max Matched USBRemarks EMV/EMI filters Parallel ATALPC BUS LPCFRAME#Lpcserirq Smbclock Cmos SMBusSMBALERT# Cmos Smbdata CmosIf the signals are not used Remarks HDA Audio InterfaceSupported Codecs EMV/EMI filters SD / Sdio Interface If the signals are not used Remarks EMV/EMI filtersSpimiso Spimosi Spiclk SPICS# Cmos SPI BUSSata Interface Option Lcirst LCI GlanGlantx + Glanrx + GLAN-CLK + LCICan / Serial Cantx CmosCanrx Cmos 14. PM Vccrtc PWR PWR PWR SupplyTyco / AMP SMARTCORE-EXPRESS Connector SpecificationsParameter Condition Specification Source on smartCore Part Name Part NumberSMARTCORE-EXPRESS Versus Comexpress Index Coprocessor Design Dimensions