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Advanced 10/100 Unmanaged Repeater — LXT9883/9863

Datasheet

Document #: 249115

Revision #: 003

Rev. Date: 08/07/01

186

COL100_LED

O - OD/OS

100M Collision LED Driver. Active output indicates collision on 100M

segment.

183

ACT10_LED

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

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

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)

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.

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