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C. register of the lan bypass controller – IBASE MB968 User Manual

Page 73

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DRIVERS INSTALLATION

73

C. Register of the LAN Bypass Controller

To fulfill the varied requests on LAN Bypass controller, IBASE provide
the smart LAN Bypass controller. User can define the Bypass function
behavior when the system is power-on, power-off and WDT signal is
asserted.
The controller is behind the SMBus controller. The I

2

C address is listed

as below:

I

2

C Address (8bit)

Remark

1

st

Controller

0x68

2

nd

Controller

0x6A

Optional




CR 0x22 : System-On Bypass Register

Attribute : Read / Write
Reset default : 0x0000

Bit

LAN

Port#

Read /
Write

Description

0

Eth5, 6

Read /
Write

Enable / Disable LAN Bypass
function when the system is
power On.

1 = Enable LAN Bypass function

0 = Disable LAN Bypass

function

1

Eth7, 8

2

Expansion
LAN Card
Eth1, 2

3

Expansion
LAN Card
Eth3, 4