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LXT9883/9863 — Advanced 10/100 Unmanaged Repeater

Datasheet

Document #: 249115

Revision #: 003

Rev. Date: 08/07/01

Table 5.

LED Signal Descriptions

Symbol

Type

1, 2

Description

184

185

LEDSEL0

LEDSEL1

O - OD/OS

LED Mode Select - Input. See Note 3 in footer below.

00 = Mode 1, 01 = Mode 2, 10 = Mode 3, 11 = Mode 4

These pins are shared with the LEDACT100, LEDCOL10 outputs.

175

LEDABGSEL

O - OD/OS

LED Activity Bar Graph Mode Select - Input. See Note 2 in footer below.

0 = Base-10 Mode, 1 = Base-2 Mode

Refer to "Activity Graph LEDs” on page 23.

This pin is shared with the Port8_LED2 output.

183

AUTOBLINK

O - OD/OS

LED Blink Mode Select - Input. See Note 3 in footer below.

0 = Auto blink on, 1 = Auto blink off

This pin is shared with the LEDACT100, LEDCOL10 outputs.

LEDDAT

LED Data. Serial data stream that is shifted into external Serial-to-Parallel

LED drivers. See"Serial LED Interface” on page 22..

LEDLAT

LED Latch. Parallel load clock for external Serial-to-Parallel LED drivers.

See "Serial LED Interface” on page 22..

LEDCLK

LED Clock. Serial data stream clock for external Serial-to-Parallel LED

drivers. See "Serial LED Interface” on page 22..

176

171

167

163

101

PORT8_LED1

PORT7_LED1

PORT6_LED1

PORT5_LED1

PORT4_LED1

PORT3_LED1

PORT2_LED1

PORT1_LED1

LED Driver 1 - Ports 1 through 8. Programmable LED driver. Active Low.

See "Direct Drive LEDs” on page 24..

Port8_LED1 must be pulled High via a 100–500 k

Ω resistor if LED circuit

not used.

175

170

166

162

100

PORT8_LED2

PORT7_LED2

PORT6_LED2

PORT5_LED2

PORT4_LED2

PORT3_LED2

PORT2_LED2

PORT1_LED2

LED Driver 2 - Ports 1 through 8. Programmable LED driver. Active Low.

See "Direct Drive LEDs” on page 24..

The Port8_LED2 pin is shared with the LEDABGSEL configuration input.

174

169

165

161

PORT8_LED3

PORT7_LED3

PORT6_LED3

PORT5_LED3

PORT4_LED3

PORT3_LED3

PORT2_LED3

PORT1_LED3

LED Driver 3 - Ports 1 through 8. Programmable LED driver. Active Low.

See "Direct Drive LEDs” on page 24..

Port8_LED3 must be pulled High via a 100–500 k

Ω resistor if LED circuit

not used.

185

COL10_LED

O - OD/OS

10M Collision LED Driver. Active output indicates collision on 10M

segment. This pin is shared with the LEDSEL1 configuration input.

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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