KSZ8842-PMQL Ver la hoja de datos (PDF) - Micrel

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KSZ8842-PMQL

2-Port Ethernet Switch with PCI Interface

Micrel 

Micrel, Inc.

KSZ8842-PMQL/PMBL

Pins Description of KSZ8842-PMQL

Pin

Number

1

Pin

Name

TEST_EN

2

SCAN_EN

3

P1LED2

4

P1LED1

5

P1LED0

6

P2LED2

7

P2LED1

8

P2LED0

Type

Pin Function

I

Test Enable

For normal operation, pull-down this pin to ground.

I

Scan Test Scan Mux Enable

For normal operation, pull-down this pin to ground.

Opu Port 1 and Port 2 LED indicators1 defined as follows:

Opu LEDs turn on when low.

Opu

Opu

Opu

Opu

P1LED32 /P2LED3

P1LED2/P2LED2

Chip Global Control Register 5:

SGCR5 bit [15,9]

[0,0] Default

[0,1]

—

—

Link/Act

100Link/Act

P1LED1/P2LED1

Full duplex/Col 10Link/Act

P1LED0/P2LED0

Speed

Full duplex

Reg. SGCR5 bit [15,9]

[1,0]

[1,1]

P1LED32 /P2LED3

Act

—

P1LED2/P2LED2

Link

—

P1LED1/P2LED1

Full duplex/Col —

P1LED0/P2LED0

Speed

—

Notes:

1. Link = On; Activity = Blink; Link/Act = On/Blink; Full Dup/Col = On/Blink;

Full Duplex = On (Full duplex); Off (Half duplex)

Speed = On (100BASE-T); Off (10BASE-T)

2. P1LED3 is pin 27. P2LED3 is pin 22

Port 1 and Port 2 LED indicators1 for Repeater mode defined as follows:

Switch Global Control Register 5:

SGCR5 bit [15,9]

[0,0] Default

[0,1] [1,0],[1,1]

P1LED3/P2LED3

RPT_COL,

RPT_ACT

—

P1LED2/P2LED2

RPT_Link3/RX,

RPT_ERR3

—

P1LED1/P2LED1

RPT_Link2/RX,

RPT_ERR2

—

P1LED0/P2LED0

RPT_Link1/RX,

RPT_ERR1

—

Note:

1. RPT_COL = Blink; RPT_Link3/RX (Host port) = On/Blink;

RPT_Link2/RX (Port 2) = On/Blink; RPT_Link1/RX (Port 1) = On/Blink;

RPT_ACT = On if any activity; RPT_ERR3 (Host port) = On if any CRC error;

RPT_ERR2 (port 2) = On if any CRC error; RPT_ERR1 (port 1) = On if any CRC error;

9

DGND

Gnd Digital ground

10

VDDIO

P

3.3V digital I/O VDD

October 2007

11

M9999-100207-1.5

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