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DM9161B
10/100 Mbps Fast Ethernet Physical Layer Single Chip Transceiver
Final 12
Version: DM9161B-12-DS-F01
January 31, 2008
6.1 LED Function Description
Normal LED mode
LED_MODE = 1
Name Pin Lo Hi Lo Hi
LED0 11 FDX HDX FDX HDX
LED1 12 SPEED: 100M SPEED: 10M SPEED: 100M SPEED: 10M
CABLESTS / LINKSTS Pull Down Pull Up
Name Pin Lo Hi Lo Hi
Link Link Fail N/A
LED2 13
Flashing (HiLo) Active Flashing (HiLo) Active
CABLESTS
/ LINKSTS
14
Without Cable
connection
With Cable connection With Link Without Link
* Pin 31 = LEDMODE
For Dual-LED.
LED_MODE = 0
LINK Mode
SPEED: 100M SPEED: 10M
Name Pin
Link Fail
Link OK Active Link OK Active
LED0 11 Lo Lo Flashing (LoHi) HI Flashing (HiLo)
LED1 12 Lo Hi Lo
CABLESTS / LINKSTS Pull Down Pull Up
Name Pin Lo Hi Lo Hi
HDX
LED2 13 FDX HDX FDX
Flashing (LoHi)
Collision
CABLESTS
/ LINKSTS
14
Without Cable
connection
With Cable connection With Link Without Link
* Pin 31 = LEDMODE
6.1.1 Dual-LED application circuit.
PAD
PAD