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RTL8101L
2003-05-28
Rev.1.3
8
EECS
O
55
EEPROM chip select
4.4 Power Pins
Symbol
Type
Pin No
Description
VDD
P
6, 22, 37, 49, 90, 95
+3.3V (Digital)
AVDD
P
59, 70, 75
+3.3V (Analog)
VDD25
P
48, 94
+2.5V (Digital)
AVDD25
P
58
+2.5V (Analog)
DGND
P
2, 16, 31, 44, 88
Digital Ground
AGND
p
62, 66, 73
Analog Ground
4.5 LED Interface
Symbol
Type
Pin No
Description
LED0, 1, 2
O
78, 77, 76
LED pins
LEDS1-0
00
01
10
11
LED0
TX/RX
TX/RX
TX
Link10/
ACT
LED1
LINK100
LINK10/100
LINK10/100
Link100/
ACT
LED2
LINK10
FULL
RX
Full
During power down mode, the LEDs are OFF.
If LED1 is pulled low by a 10K resistor, the RT8101L runs in
modem-only mode and a 93C46 is not necessary.
4.6 Attachment Unit Interface
Symbol
Type
Pin No
Description
TXD+
TXD-
O
O
72
71
100/10BASE-T transmit (Tx) data
RXIN+
RXIN-
I
I
68
67
100/10BASE-T receive (Rx) data
X1
I
61
25 MHz crystal/OSC input
X2
O
60
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.
4.7 AC-Link Pins
Symbol
Type
Pin No
Description
AC_RSTB
O
1
MC’97 Reset: Hardware reset to Codec.
AC_SYNC
O
3
MC’97 SYNC: 48Khz fixed rate sample sync to Codec.
AC_DOUT
O
4
MC’97 Serial Data Out: Serial data output to Codec.
AC_DIN
I
5
MC’97 Serial Data In: Serial data input from Codec.
AC_BCK
I
7
MC’97 Bit Clock: 12.288Mhz serial data clock generated by Codec.
INTBB
O/D
79
INTBB is used for function 1 device (Modem) to request an interrupt.
GPIO0
I/O
100
GPIO1
I/O
99
General Purpose I/O pins: Both can be programmed as input or output by
bit0-1 of PCI GPIO Setup Register.
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