AX88875AP Bripeater

ASIX ELECTRONICS CORPORATION

9

2.2 LED Display

Signal Name

Type Pin No.

Description

LED[2:0]

or

/LUTI[2:0]

O

76 - 74 LED Display Information : When MODE=”1” , Those signals indicate each

port‘s Partition, Jabber, Activity, Collision (global), Repeater ID, Utilization

% (global), Collision % (global) in sequence. For detail , see the LED timing

specification

/LUTI[2:0] : When MODE=”0” , Those pins drive utilization[2:0] LEDs

directly.

The Utilization % display define as following : (See Note 1 also)

The Collision % display define as following :

LED_CK

or

/LUTI[3]

O

77

LED clock signal : When MODE=”1” , The signal is a discontinue clock for

LED signals serial shift out. The clock period width is 40nS and last 16 cycle

with every 125ms repeated.

/LUTI[3] : When MODE=”0” , This pin drive utilization[3] LED directly.

/LCOL10

or

/LUTI[4]

O/Z

113

Collision LED for 10Mbps : When MODE=”1” , This pin indicates 10Mbps

repeater collision occurred.

/LUTI[4] : When MODE=”0” , This pin drive utilization[4] LED directly.

NC

or

/LUTI[5]

O

112

NC : When MODE=”1” , The pin function is reserved.

/LUTI[5] : When MODE=”0” , This pin drive utilization[5] LED directly.

/LCOL100

O/Z

69

Collision LED for 100Mbps : This pin indicates 100Mbps repeater collision

occurred.

NC

or

/LACT[4:0]

O

121, 124

123, 128

127

NC : When MODE=”1” , The pin function is reserved.

/LACT[4:0] : When MODE=”0”,Those pins drive activity[4:0] LEDs

directly.

NC or

/LPART[4:0]

O/OC

119-115 NC : When MODE=”1” , The pin function is reserved. or

/LPART[4:0] : When MODE=”0”, Those pins drive partition[4:0] LEDs

directly.

Collision %

LED0 LED1 LED2 LED3 LED4 LED5 LED6 LED7

0

1

1

1

1

1

1

1

1

1

0

1

1

1

1

1

1

1

2

0

0

1

1

1

1

1

1

5

0

0

0

1

1

1

1

1

10

0

0

0

0

1

1

1

1

15

0

0

0

0

0

1

1

1

20

0

0

0

0

0

0

1

1

30

0

0

0

0

0

0

0

1

60+

0

0

0

0

0

0

0

0

Utilization % LED0 LED1 LED2 LED3 LED4 LED5 LED6 LED7

0

1

1

1

1

1

1

1

1

1

0

1

1

1

1

1

1

1

5

0

0

1

1

1

1

1

1

10

0

0

0

1

1

1

1

1

15

0

0

0

0

1

1

1

1

30

0

0

0

0

0

1

1

1

40

0

0

0

0

0

0

1

1

60

0

0

0

0

0

0

0

1

80+

0

0

0

0

0

0

0

0