RTL8201 Просмотр технического описания (PDF) - Realtek Semiconductor

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Компоненты Описание

производитель

RTL8201

REALTEK SINGLE CHIP SINGLE PORT 10/100MBPS FAST ETHERNET PHYCEIVER

Realtek Semiconductor 

RTL8201(L)

5.4 100Mbps Network Interface

Symbol

TPTX+

TPTX-

RTSET

TPRX+

TPRX-

Type

O

O

I

I

I

Pin(s) No.

34

33

28

31

30

Transmit Output

Description

Transmit bias resistor connection: This pin should be pulled to GND by a

2.0K resistor.

Receive input

5.5 Device Configuration Interface

Symbol

ISOLATE

Type

I

RPTR/RTT2 I

SPEED

I

DUPLEX

I

ANE

I

LDPS

I

MII/SNIB/T I

XD5(test)

Pin(s) No.

43

40

39

38

37

41

44

Description

Set high to isolate the RTL8201(L) from the MAC. This will also isolate the

MDC/MDIO management interface. In this mode, the power consumption is

minimum.

Set high to put the RTL8201(L) into repeater mode. In test mode, this pin is

re-defined as RTT2.

Set high to put the RTL8201(L) into 100Mbps operation

Set high to enable full duplex

Set high to enable Auto-negotiation mode, set low to force mode

Set high to put the RTL8201(L) into LDPS mode,

Pull high to set the RTL8201(L) into MII mode operation

5.6 LED Interface/PHY Address Config

Symbol

LED0/PAD0

LED1/PAD1

LED2/PAD2

LED3/PAD3

LED4/PAD4

Type

O

O

O

O

O

Pin(s) No.

9

10

12

13

15

Link LED

Full Duplex LED

Link 10/ACT LED

Link 100/ACT LED

Collision LED

Description

5.7 Reset and Test pins

Symbol

RTT3/CTRL

RESETB

Type

O

I

Pin(s) No.

27

42

Description

Currently a test pin, this pin may be utilized for future functions.

RESETB: Setting low to reset the chip.

5.8 Power and Ground pins

Symbol

AVDD0

AVDD1

AVDD2

AGND

DVDD0

DVDD1

DGND

Type

P

P

P

P

P

P

P

Pin(s) No.

32

36

48

29,35,45

8

14

11,17

Description

Analog power: 3.3V power supply for analog circuit; should be well

decoupled

Analog power: 3.3V power supply for analog circuit; should be well

decoupled

3.3V power supply for PLL, should be well decoupled and use a bead with

100ohm @ 100MHz to connect to analog power

Analog Ground: Should be connected to a larger GND plane

Digital Power: 3.3V power supply for digital circuit.

Digital Power: 3.3V power supply for digital circuit.

Digital Ground: Should be connected to a larger GND plane

2002-01-18

6

Rev.1.04

Tel: +49(0)234-9351135 · Fax: +49(0)234-9351137 E-MAIL: info@cornelius-consult.de

http://www.cornelius-consult.de

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