DIGITAL-LOGIC AG

SMA200 Manual V1.0

5.4.6.LPC BUS

 

 

 

 

On Module

Ext. Ter-

Max.

 

Matched

Signal

BUS

Type

Description

Termination

mination

Length

Ohm

Length

 

 

 

 

 

Needed

in mm

 

in mm

LPC_FRAME#

LPC_AD[3..0]

LPC_SERIRQ

LPC_CLKOUT[0..1]

CMOS

3.3V

Connect to the LPC device

 

Out

 

CMOS

3.3V

Connect to the LPC device

 

I/O

 

CMOS

3.3V

Connect to the LPC device

 

I/O

 

CMOS

3.3V

Connect to the Firmware

 

Out

hub or the SuperIO

-

-

PU 10k to 3.3V

Series 33 Ohm

-

-

-

-

100

100

100

100

55

55

55

55

-

-

-

-

If the signals are not used:

Leave the pins open.

Remarks:

Use 33 Ohm series termination in each LPC-CLKx-signal.

The LPC_CLKOUTx may drive only 2 loads.

EMV/EMI filters:

Are not needed.

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Compaq SMA200 user manual Lpc Bus, Lpcframe#, Lpcserirq