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KSZ8051MNL

10BASE-T/100BASE-TX Automotive Physical Layer Transceiver

Microchip Technology 

KSZ8051MNL/RNL

TABLE 2-1: SIGNALS - KSZ8051MNL (CONTINUED)

Pin

Number

Pin

Name

Type

Note

2-1

Description

LED output: Programmable LED1 output

Config mode: Latched as Speed (register 0h, bit [13]) at the de-assertion of

reset.

See the Strap-In Options - KSZ8051MNL section for details.

The LED1 pin is programmable using register 1Fh bits [5:4], and is defined as

follows.

LED mode = [00]

Speed

31

LED1/SPEED Ipu/O 10BASE-T

100BASE-TX

Pin State

High

Low

LED Definition

OFF

ON

LED mode = [01]

Activity

No activity

Activity

Pin State

High

Toggle

LED Definition

OFF

Blinking

32

PADDLE

Note 2-1

Note 2-2

Note 2-3

LED mode = [10], [11]: Reserved

RST#

Ipu Chip reset (active low)

GND

GND Ground

P = power supply

GND = ground

I = input

O = output

I/O = bi-directional

Ipu = Input with internal pull-up (see Electrical Characteristics for value).

Ipu/O = Input with internal pull-up (see Electrical Characteristics for value) during power-up/reset;

output pin otherwise.

Ipd/O = Input with internal pull-down (see Electrical Characteristics for value) during power-up/reset;

output pin otherwise.

Ipu/Opu = Input with internal pull-up (see Electrical Characteristics for value) and output with internal

pull-up (see Electrical Characteristics for value).

MII RX Mode: The RXD[3:0] bits are synchronous with RXC. When RXDV is asserted, RXD[3:0]

presents valid data to the MAC.

MII TX Mode: The TXD[3:0] bits are synchronous with TXC. When TXEN is asserted, TXD[3:0]

presents valid data from the MAC.

DS00002310A-page 8

 2016 Microchip Technology Inc.

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