Lanner HCP-72i1, Руководство пользователя

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Description of PLX8748 Register
Management of the Control Register
offset 0x354
bit 4:0 is the management port number.
bit 5 is an active management port.
bit 12:8 is the redundant management port number.
bit 13 is an active redundant management port.
Each PCI Express switch can merely own one management port. When it is crashed, only the redundant
management port is allowed to be changed itself as the management port; in the meantime, the management port
needs to become the redundant management port as well. Other port number cannot manage the switch.
Secondary Bus Reset
offset 0x1000 * port_ 0x3c
bit 22 Secondary Bus Reset
Downstream port register should be reset to default while the switch is doing the switching.
Virtual Switch
VS0 offset 0x380
Default value : 0x301
VS1 offset 0x384
Default value :0x30002
bit 0 : port 0
bit 1 : port 1
bit 2 : port 2
bit 3 : port 3
bit 8 : port 8
bit 9 : port 9
bit 10 : port 10
bit 11 : port 11
bit 16 : port 16
bit 17 : port 17
bit 18 : port 18
bit 19 : port 19
1 : enable 0 :disable