
Advanced 10/100 Unmanaged Repeater
—
LXT9883/9863
Datasheet
Document #: 249115
Revision #: 003
Rev. Date: 08/07/01
15
186
COL100_LED
I
O - OD/OS
100M Collision LED Driver
. Active output indicates collision on 100M
segment.
183
ACT10_LED
I
O - OD/OS
10M Activity LED Driver
. Active output indicates activity on 10M segment.
This pin is shared with the AUTOBLINK configuration input (refer to Note 3
below).
184
ACT100_LED
I
O - OD/OS
100M Activity LED Driver
. Active output indicates activity on 100M
segment. This pin is shared with the LEDSEL0 configuration input (refer to
Note 3 below).
Table 6. Power Supply and Indication Signal Descriptions
Pin
Symbol
Type
1, 2
Description
8, 16, 28,
47, 61, 74,
76, 77, 85,
173, 177,
180, 190,
200
VCC
-
Power Supply Inputs.
Each of these pins must be connected to a common
+3.3 VDC power supply. A de-coupling capacitor to digital ground should be
supplied for every one of these pins.
106, 113,
120, 127,
134, 141,
148, 155
VCCR
-
Analog Supply Inputs - Receive.
Each of these pins must be connected to a
common +3.3 VDC power supply. A de-coupling capacitor to GND should be
supplied for every one of these pins. Use ferrite beads to create a separate
analog VCC plane.
112, 126,
135, 149
VCCT
-
Analog Supply Inputs - Transmit.
Each of these pins must be connected to a
common +3.3 VDC power supply. A de-coupling capacitor to GND should be
supplied for every one of these pins. Use ferrite beads to create a separate
analog VCC plane.
1, 7, 15, 27,
46, 62, 75,
86, 90, 94,
98, 103,
109, 116,
117, 123,
130, 131,
138, 144,
145, 152,
158, 164,
168, 172,
179, 181,
189, 199
GND
-
Ground.
Connect each of these pins to system ground plane.
1. I = Input, O = Output, I/O = Input/Output, D = Digital, A = Analog, AI = Analog Input, A I/O = Analog Input/Output, OD = Open
Drain,
OS = Open Source, PD = Pull Down, PU = Pull Up.
NC = No Clamp. Pad does not clamp input in the absence of power.
2. Pins are 5V tolerant, unless indicated.
Table 5. LED Signal Descriptions (Continued)
Pin
Symbol
Type
1, 2
Description
1. I = Input, O = Output, I/O = Input/Output, D = Digital, A = Analog, AI = Analog Input, A I/O = Analog Input/Output, OD = Open
Drain,
OS = Open Source, PD = Pull Down, PU = Pull Up. Even if the IRB is not used, required pull-up resistors must be installed as
listed above.
NC = No Clamp. Pad does not clamp input in the absence of power.
2. Pins are 5V tolerant, unless indicated.
3. Input must be static; Refer to
"LED Pins Multiplexed with Configuration Inputs
”
on page 39.
for information on pin use.