AN983 datasheet(72/91 Pages) ETC

72 / 91 page

AN983B

PCI/miPCI Fast Ethernet Controller with integrated PHY

8.6 LED DISPLAY OPERATION

The AN983B provides 2 kinds of LED display mode; the detail descriptions about the operation are

described in the PIN Description section.

8.6.1 FIRST MODE - 3 LED DISPLAYS FOR

100Mbps(on) or 10Mbps(off)

Link (Keeps on when link ok) or Activity (Blink with 10Hz when receiving or

transmitting but not collision)

FD (Keeps on when in Full duplex mode) or Collision (Blink with 20Hz when colliding)

8.6.2 SECOND MODE – 4 LED DISPLAYS FOR

100 Link (On when 100M link ok)

10 Link (On when 10M link ok)

Activity (Blink with 10Hz when receiving or transmitting)

FD (Keeps on when in Full duplex mode) or Collision (Blink with 20Hz when colliding)

8.7 RESET OPERATION

8.7.1 RESET WHOLE CHIP

There are two ways to reset the AN983B.

First, hardware reset, the AN983B can be reset via RST#

pin. For ensuring proper reset operation, at least 100

µs active Reset input signal is required. Second,

software reset, when bit 0 of CSR0 register is set to 1, the AN983B will reset entire circuits and

8.7.2 RESET TRANSCEIVER ONLY

When bit 15 of PHY register 0 is set to 1, the transceiver will reset entire circuits and register

ADMtek Inc.

www.admtek.com.tw

Rev. 1.8

AN983 데이터시트(PDF) 72 Page - List of Unclassifed Manufacturers