rtl8100l Realtek Semiconductor Corporation, rtl8100l Datasheet - Page 9

• Manufacturer Part Number: rtl8100l
• Description: Fast Ethernet Controller
• Manufacturer: Realtek Semiconductor Corporation

4.6 Attachment Unit Interface
4.7 Test and Other Pins
2001-11-9
TXD+
TXD-
RXIN+
RXIN-
X1
X2
RTT3
RTSET
VCTRL
NC
Symbol
Symbol
Analog
TEST
Type
Type
I/O
O
O
O
I
I
I
-
7,35,40, 52,53,
54, 69, 76, 78
Pin No
Pin No
72
71
68
67
61
60
63
65
55
100/10BASE-T transmit (Tx) data.
100/10BASE-T receive (Rx) data.
25 MHz crystal/OSC. input.
Crystal Feedback Output: This output is used in crystal connection only.
It must be left open when X1 is driven with an external 25 MHz oscillator.
Chip test pin
This pin must be pulled low by a resistor. Please refer to the application
circuit for the correct value.
Use this pin and an external PNP type transistor to generate +2.5V for
the RTL8100B(L).
Reserved
9
Description
Description
RTL8100B(L)
Rev.1.41