DM9601E ETC1 [List of Unclassifed Manufacturers], DM9601E Datasheet - Page 42

• Manufacturer Part Number: DM9601E
• Description: USB Ethernet MAC Controller with Intergrated 10/100 PHY
• Manufacturer: ETC1 [List of Unclassifed Manufacturers]

12.7 Power Reduced Mode
The Signal detect circuit is always turned on to monitor the
signal if there is no signal on the media (cable
disconnected). The DM9601 automatically turns off the
power and enters the Power Reduced mode, whether its
operation mode is N-way or force mode. When enters the
Power Reduced mode, the transmit circuit still sends out fast
link pules with minimum power consumption. If a valid
signal is detected from the media, which might be N-ways
fast link pules, 10Base-T normal link pules, or 100Base-TX
MLT3 signals, the device wakes up and resumes normal
operation mode.
That can be writing Zero to Reg.16.4 to disable Power
Reduced mode.
42
USB to Ethernet MAC Controller with Integrated 10/100 PHY
12.8 Power Down Mode
That can be setting Reg.0.11 high to enter the Power Down
mode, which disables all transmit, receive functions and MII
interface functions except the MDC/MDIO management
interface.
12.9 Reduced Transmit Power Mode
Additional Transmit power reduction can be gained by
designing with 1.25:1 turns ration magnetic on its TX side
and using a 8.5KΩ resistor on BGRES and BGGND pins,
and the TX+/TX- pull-high resistors should be changed from
50Ω to 78Ω.. This configuration could be reduced about
20% transmit power.
Version: DM9601-DS-F01
DM9601
June 22, 2002
Final