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
Power ON State Bypass Control Status Register
Bit Field | Name | Value |
03:00 | Segment | Segment control bit. Each bit corresponds to a specific segment |
| 1 to 4 | numbered 1 thru 4. |
|
| Write： |
|
| 1: Force Bypass |
|
| 0: Force Pass Through |
|
| Read： |
|
| 1: Bypass Mode |
|
| 0: Pass Through Mode |
|
|
|
4 | Path sel | 0：LPC Control LAN |
|
| 1：GPIO Control LAN |
5 | reserved |
|
6 | reserved |
|
7 | GPIO sel | 0：GPIO38 and GPIO39 ：control LAN1,LAN2 |
|
| 1：GPIO38 controls LAN1，GPIO39 controls LAN2 |