ADM6308 查看數據表（PDF） - Unspecified

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ADM6308

Eight-port 10/100M Ethernet Switch Controller

Unspecified 

Olive plus Specification

6

MDC

43 O Management Data Clock. Provides the reference clock for the MDIO signal

8ma

MDIO

45 BI Management Data Input/output. This pin provides the channels for ADM6308 and

8ma Transceivers to transfer the control information and status.

LED Display

QFLED#

46

High Priority Frame

tri Buffer Full or Faulty LED Display. This occurs when the packet is lost and flow control is

8ma disabled. Or, if flow control is enabled and jam or PAUSE frames are sent, buffer full LED

will flash. If it is found faulty, the LED will always be on. (See LED function description)

high_port[0]

high_port[1]

high_port[2]

high_port[3]

high_port[4]

high_port[5]

high_port[6]

high_port[7]

53 BI Priority setting for port0~port7. Internally pull down.

54

High = high priority

55

56

58

59

60

61

Configuration

BP0

50

BP1

49

NA16#

51

XFC#

48

Miscellaneous

I Back Pressure Mode. Internally pull down. The BP0~1 modes define 4 different back-

pressure methods. Each BPA1~3 has different algorithm described in EEPROM section.

The following shows ADM6308 configuration of back-pressure.

BP1 BP0

0

0 Back Pressure Disable

0

1 BPA1 (Back Pressure Algorithm 1) Enable

1

0 BPA2 (Back Pressure Algorithm 2) Enable

1

1 BPA3 (Back Pressure Algorithm 3) Enable

I Not aborted after continuous 16- times of collision if pull down. Internally pull up.

I Full Duplex Flow Control. Internally pull up. When 802.3 x flow control is disable, no

PAUSE frame will be sent. (default)

REFCLK

RESET#

RECALL

TEST[0]

TEST[1]

Power

10 I Clock reference input of 50MHz Reduced MII. Synchronous clock reference for receiving,

transmitting, and control interface.

63 I RESET#. Active low. For power on reset to initiate ADM6308 and let all the state machines

and statuses enter the initial and default state. Besides, all the LED will be turned on when

power is on or RAM testing failed.

52 I Whenever the level is changed, ADM6308 recalls EEPROM or 8051-like controller to get

configuration data. Internally pull down.

65 I Test mode. Internally pull down

66 I Test mode. Internally pull down

Vddi

Vddo

6, 23, 38, 57, 68, 89

2.5V

11, 27, 44, 71, 94

3.3V

ADMtek Incorporated

00/04/25

1F, No 9, Industrial E. 9th Road, SBIP, Hsin-Chu

Version : 1.10

Tel : (03)578-8879 Fax : (03)578-8871

ADMtek Incorporated Confidential

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