Config 2; Config 3 - Realtek RTL8169 Manual

6.13 CONFIG 2

(Offset 0053h, R)
Bit R/W
7:5 -
4 R
3 R
2:0 R

6.14 CONFIG 3

(Offset 0054h, R/W)
Bit R/W
7 R
6 -
5 R/W
cont...
2002/03/27
Symbol
-
Reserved
Aux_Status Auxiliary Power Present Status:
1: The Aux. Power is present.
0: The Aux. Power is absent.
The value of this bit is fixed after each PCI reset.
PCIBusWidth PCI Bus Width:
1: 64-bit slot
0: 32-bit slot
PCICLKF2-0 PCI clock frequency:
Symbol
GNTSel Grant Select: Select the Frame's asserted time after the Grant signal
has been asserted. The Frame and Grant are the PCI signals.
1: delay one clock from GNT assertion.
0: No delay
-
Reserved
Magic
Magic Packet: This bit is valid when the PWEn bit of CONFIG1
register is set. The RTL8169 will assert the PMEB signal to wakeup the
operating system when the Magic Packet is received.
Once the RTL8169 has been enabled for Magic Packet wakeup and has
been put into an adequate state, it scans all incoming packets addressed to
the node for a specific data sequence, which indicates to the controller that
this is a Magic Packet frame. A Magic Packet frame must also meet the
basic requirements: Destination address + Source address + data + CRC
The destination address may be the node ID of the receiving station or a
multicast address, which includes the broadcast address.
The specific sequence consists of 16 duplications of 6 byte ID registers,
with no breaks or interrupts. This sequence can be located anywhere within
the packet, but must be preceded by a synchronization stream, 6 bytes of
FFh. The device will also accept a multicast address, as long as the 16
duplications of the IEEE address match the address of the ID registers.
If the Node ID is 11h 22h 33h 44h 55h 66h, then the format of the Magic
frame looks like the following:
Destination address + source address + MISC + FF FF FF FF FF FF +
MISC + 11 22 33 44 55 66 + 11 22 33 44 55 66 + 11 22 33 44 55 66 + 11
22 33 44 55 66 + 11 22 33 44 55 66 + 11 22 33 44 55 66 + 11 22 33 44
55 66 + 11 22 33 44 55 66 + 11 22 33 44 55 66 + 11 22 33 44 55 66 + 11
22 33 44 55 66 + 11 22 33 44 55 66 + 11 22 33 44 55 66 + 11 22 33 44
55 66 + 11 22 33 44 55 66 + 11 22 33 44 55 66 + MISC + CRC
Description
PCICLKF2-0
000
001
Other values
Description
25
RTL8169
MHz
33
66
Reserved
Rev.1.21