Owner's Manual

2-19
Hardware Setup
LAN5, LAN6 have no by pass function.
Programming Guide
LPC I/O address : 5E
SMBus address: 0X00 (optional)
1.Power ON State Bypass Control Status Register
Set/Read bypass mode
Default Value: 0x00 (Base on Customer Demand)
Bit Definition
Bit Field Name Value
Segment control bit. Each bit corresponds to a specific segment
numbered 1 thru 4.
Write
：
1: Force Bypass
0: Force Pass Through
Read
：
1: Bypass Mode
0: Pass Through Mode
0
：
LPC Control LAN
1
：
GPIO Control LAN
5 reserved
6 reserved
0
：
GPIO38 and GPIO39
：
control LAN1,LAN2
1
：
GPIO38 controls LAN1
，
GPIO39 controls LAN2
Power ON State Bypass Control Status Register
7 GPIO sel
03:00 Segment
1 to 4
4 Path sel
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