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RTL8100C & RTL8100CL
Datasheet
Single-Chip Fast Ethernet Controller
39
Track ID: JATR-1076-21 Rev. 1.06
No.
Name
Type
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
3Fh
MXLAT
R
0
0
1
0
0
0
0
0
40h–4Fh
RESERVED
50h
PMID
R
0
0
0
0
0
0
0
1
51h
NextPtr
R
0
0
0
0
0
0
0
0
52h
PMC
R
Aux_I_b1 Aux_I_b0
DSI
Reserved PMECLK
Version
53h
R
PME_
D3cold
PME_
D3hot
PME_D2 PME_D1 PME_D0
D2
D1
Aux_I_b2
54h
PMCSR
R
0
0
0
0
0
0
Power State
W
-
-
-
-
-
-
Power State
55h
R
PME_
Status
-
-
-
-
-
-
PME_En
W
PME_
Status
-
-
-
-
-
-
PME_En
56h–5Fh
RESERVED
60h
VPDID
R
0
0
0
0
0
0
1
1
61h
NextPtr
R
0
0
0
0
0
0
0
0
62h
Flag VPD
Address
R/W VPDADD
R7
VPDADDR
6
VPDADD
R5
VPDADD
R4
VPDADD
R3
VPDADD
R2
VPDADD
R1
VPDADD
R0
63h
R/W
Flag
VPDADDR
14
VPDADD
R13
VPDADD
R12
VPDADD
R11
VPDADD
R10
VPDADD
R9
VPDADD
R8
64h
R/W
Data7
Data6
Data5
Data4
Data3
Data2
Data1
Data0
65h
R/W
Data15
Data14
Data13
Data12
Data11
Data10
Data9
Data8
66h
R/W
Data23
Data22
Data21
Data20
Data19
Data18
Data17
Data16
67h
VPD Data
R/W
Data31
Data30
Data29
Data28
Data27
Data26
Data25
Data24
68h-FFh
RESERVED
6.2. PCI Configuration Space Functions
The PCI configuration space is intended for configuration, initialization, and catastrophic error handling
functions. The functions of the RTL8100C(L)’s configuration space are described below.
VID: Vendor ID. This field defaults to a value of 10ECh (Realtek Semiconductor’s PCI Vendor ID).
DID: Device ID. This field defaults to a value of 8139h.
Command: The command register is a 16-bit register used to provide coarse control over a device’s ability
to generate and respond to PCI cycles.