RTL8100B(L)
2001-11-9 Rev.1.41
3
2. General Description
The Realtek RTL8100B(L) is a highly integrated, cost-effective single-chip Fast Ethernet controller that provides 32-bit
performance, PCI bus master capability, and full compliance with IEEE 802.3u 100Base-T specifications and IEEE 802.3x Full
Duplex Flow Control. It also supports the Advanced Configuration Power management Interface (ACPI), PCI power management
for modern operating systems that are capable of Operating System Directed Power Management (OSPM) to achieve the most
efficient power management possible. The RTL8100B(L) does not support CardBus mode as the RTL8139C does.
In addition to the ACPI feature, the RTL8100B(L) also supports remote wake-up (including AMD Magic Packet, LinkChg, and
Microsoft
®
wake-up frame) in both ACPI and APM environments. The RTL8100B(L) is capable of performing an internal reset
through the application of auxiliary power. When auxiliary power is applied and the main power remains off, the RTL8100B(L)
is ready and waiting for the Magic Packet or Link Change to wake the system up. Also, the LWAKE pin provides 4 different
output signals including active high, active low, positive pulse, and negative pulse. The versatility of the RTL8100B(L) LWAKE
pin provides motherboards with Wake-On-LAN (WOL) functionality.
The RTL8100B(L) also supports Analog Auto-Power-down, that is, the analog part of the RTL8100B(L) can be shut down
temporarily according to user requirements or when the RTL8100B(L) is in a power down state with the wakeup function
disabled. In addition, when the analog part is shut down and the IsolateB pin is low (i.e. the main power is off), then both the
analog and digital parts stop functioning and the power consumption of the RTL8100B(L) will be negligible. The RTL8100B(L)
also supports an auxiliary power auto-detect function, and will auto-configure related bits of their own PCI power management
registers in PCI configuration space.
The PCI Vital Product Data(VPD) is also supported to provide the information that uniquely identifies hardware (i.e., the OEM
brand name of RTL8100B(L) LAN card). The information may consist of part number, serial number, and other detailed
information.
To provide cost down support, the RTL8100B(L) is capable of using a 25MHz crystal or OSC as its internal clock source.
The RTL8100B(L) keeps network maintenance costs low and eliminates usage barriers. It is the easiest way to upgrade a
network from 10 to 100Mbps. It also supports full-duplex operation, making 200Mbps bandwidth possible at no additional cost.
To improve compatibility with other brands’ products, the RTL8100B(L) is also capable of receiving packets with
InterFrameGap no less than 40 Bit-Time. The RTL8100B(L) is highly integrated and requires no “glue” logic or external
memory.
RTL8100B(L)
2001-11-9 Rev.1.41
4
3. Pin Assignments
79 LED1
80 LED0
81 INTAB
82 RSTB
83 CLK
84 GNTB
85 REQB
87 AD30
88 GND
89 AD29
90 VDD
91 AD28
92 AD27
93 AD26
94 AD25
95 AD24
96 VDD25
97 VDD
98 CBE3B
86 AD31
48 EESK
47 EEDI
46 EEDO
45 AD0
44 AD1
43 GND
42 AD2
41 AD3
40 NC
37 AD5
36 AD6
35 NC
34 VDD
33 AD7
32 CBE0B
31 GND
30 AD8
29 AD9
39 VDD
38 AD4
100 AD23
1 AD22
2 GND
3 AD21
4 AD20
5 AD19
6 VDD
7 NC
8 AD18
9 AD17
10 AD16
11 CBE2B
12 FRAMEB
13 IRDYB
27 AD11
26 AD12
25 AD13
24 AD14
23 AD15
22 VDD
21 CBE1B
20 PAR
19 SERRB
18 PERRB
28 AD10
17 STOPB
16 GND15
DEVSELB
14 TRDYB
99 IDSEL
62 GND
61 X1
60 X2
59 AVDD
58 AVDD25
57 PMEB
56 GND
55 VCTRL
54 NC
53 NC
63 RTT3
52 NC
51 VDD25
50 AUX
49 EECS
65 RTSET
66 GND
67 RXIN-
68 RXIN+
69 NC
70 AVDD
71 TXD-
72 TXD+
73 GND
74 ISOLATEB
64 LWAKE
75 AVDD
76 NC
77 LED2
78 NC
RTL8100B QFP
RTL8100B(L)
2001-11-9 Rev.1.41
5
81 INTAB
82 RSTB
83 CLK
84 GNTB
85 REQB
87 AD30
88 GND
89 AD29
90 VDD
91 AD28
92 AD27
93 AD26
94 AD25
95 AD24
96 VDD25
97 VDD
98 CBE3B
86 AD31
100 AD23
99 IDSEL
79 LED1
80 LED0
76 NC
77 LED2
78 NC
RTL8100BL LQFP
1 AD22
2 GND
3 AD21
4 AD20
5 AD19
6 VDD
7 NC
8 AD18
9 AD17
10 AD16
11 CBE2B
12 FRAMEB
13 IRDYB
25 AD13
24 AD14
23 AD15
22 VDD
21 CBE1B
20 PAR
19 SERRB
18 PERRB
17 STOPB
16 GND
15 DEVSELB
14 TRDYB
48 EESK
47 EEDI
46 EEDO
45 AD0
44 AD1
43 GND
42 AD2
41 AD3
40 NC
37 AD5
36 AD6
35 NC
34 VDD
33 AD7
32 CBE0B
31 GND
30 AD8
29 AD9
39 VDD
38 AD4
27 AD11
26 AD12
28 AD10
50 AUX
49 EECS
65 RTSET
66 GND
62 GND
61 X1
60 X2
59 AVDD
58 AVDD25
57 PMEB
56 GND
55 VCTRL
54 NC
53 NC
63 RTT3
52 NC
51 VDD25
67 RXIN-
68 RXIN+
69 NC
70 AVDD
71 TXD-
72 TXD+
73 GND
74 ISOLATEB
64 LWAKE
75 AVDD