Q211: RTL8100CL (Ethernet Controller with Power Management)
IC BLOCK DIAGRAMS AND TERMINAL DESCRIPTIONS -83
TX-NR905/NA905
Table 4. EPROM/EEPROM Interface/AUX
Symbol Type Pin No Description
EESK
EEDO
O
O, I
111
108
The MA2-0 pins are switched to EESK, EEDI, EEDO in 93C46
programming or auto-load mode.
AUX / EEDI I/O 109 Aux. Power Detect.
This pin is used to notify the RTL8100C(L) of the existence of Aux.
power (only during initial power-on). This pin should be pulled high
to the auxiliary power (5VPM or 3VAUX) via a resistor to detect the
Aux. power. Doing so will enable wakeup support from ACPI D3
cold or APM power-down. If this pin is not pulled high, the
RTL8100C(L) assumes that no auxiliary power exists.
EEDI: After Aux. Power On Detection is complete; EEDI is enabled
to support EEPROM auto-load operation.
EECS O 106 EEPROM chip select.
Table 5. Power Pins
Symbol Type Pin No Description
VDD33 P 26, 41, 56, 71,
84, 94, 107
+3.3V (Digital)
AVDD33 P 3, 7, 20 +3.3V (Analog).
VDD25 P 32, 54, 78, 99 +2.5V (Digital).
AVDD25 P 12 +2.5V (Analog).
GND P 4, 17, 21, 35, 38, 51,
52, 66, 80, 81, 91, 100,
101, 119, 123, 124, 128
Ground.
Table 6. LED Interface
Symbol Type Pin No Description
sniP DEL 411 ,511 ,711 O 2 ,1 ,0DEL
LEDS1-0 00 01 10 11
LED0 TX/RX TX/RX TX TX
LED1 LINK100 LINK10/100 LINK10/100 LINK100
LED2 LINK10 FULL RX LINK10
During power down mode, the LEDs are OFF.
Table 7. Attachment Unit Interface
Symbol Type Pin No Description
TXD+
TXD-
O
O
1
2
100/10Base-T Transmit (TX) data.
RXIN+
RXIN-
I
I
5
6
100/10Base-T Receive (RX) data.
X1 I 121 25MHz Crystal/OSC Input.
X2 O 122 Crystal Feedback Output.
This output is used in a crystal connection only. It must be left open when
X1 is driven with an external 25MHz oscillator.
TERMINAL DESCRIPTION(4/4)
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