88e3015 Marvell Semiconductor, Inc., 88e3015 Datasheet - Page 46

• Manufacturer Part Number: 88e3015
• Description: Integrated 10/100 Fast Ethernet Transceiver
• Manufacturer: Marvell Semiconductor, Inc.

2.11.3 LED Polarity
The polarity of the LED in the active state can be set through register 25.14:12.
Table 25:
2.11.4 Stretching and Blinking
Some of the statuses can be pulse stretched. Pulse stretching is necessary because the duration of these status
events might be too short to be observable on the LEDs. The pulse stretch duration can be programmed via Reg-
ister 24.14:12. The default pulse stretch duration is set to 170 to 340 ms. The pulse stretch duration applies to all
applicable LEDs.
Some of the statuses indicate multiple events by blinking LEDs. The blink period can be programmed via Register
24.11:9. The default blink period is set to 84 ms. The blink rate applies to all applicable LEDs.
Doc. No. MV-S103657-00, Rev. C
Page 46
B i ts
25.14
25.13
25.12
LED Active Polarity
F i e ld
InvLED2
InvLED1
InvLED0
88E3015/88E3018
Integrated 10/100 Fast Ethernet Transceiver
D e s c r i p t io n
Invert LED2. This bit controls the active level of the LED2 pin.
0 = Active Low LED2
1 = Active High LED2
Invert LED1. This bit controls the active level of the LED1 pin.
0 = Active Low LED1
1 = Active High LED1
Invert LED0. This bit controls the active level of the LED0 pin.
0 = Active Low LED0
1 = Active High LED0
Document Classification: Proprietary Information
CONFIDENTIAL
October 26, 2006, Advance
Copyright © 2006 Marvell