ADM7001XACT1XP Lantiq, ADM7001XACT1XP Datasheet - Page 42

• Manufacturer Part Number: ADM7001XACT1XP
• Manufacturer: Lantiq

Specifications of ADM7001XACT1XP

• Lead Free Status / RoHS Status: Supplier Unconfirmed

Figure 20
3.3
Register 19 is used for different mode led display. ADM7001 provides power on LED self test to minimize and ease
the system test cost.
All LEDs will be Off during power on reset (Output value same as recommend value on LED pins). After power on
reset, all internal parallel LEDs will be On for 2 seconds to ease manufacture overhead
There are three types of LED supported by ADM7001 internally. The first is LNKACT, which represents the status
of Link and Transmit/Receive Activity, the second is LDSPD, which indicates the speed status, and the last is
DUPCOL, which shows pure duplex status in full duplex and duplex/collision combined status in half duplex. All
these three LED can be controlled by Register 19 to change display contents.
After LED self test,
value setting for LDSPD, DUPCOL and LNKACT. When the recommend value is high, ADM7001 will drive LED
LOW; ADM7001 will drive the LED HIGH when the recommend value is low, instead.
Table 14
SPEED
10M
100M
LINK FAIL
Table 15
DUPLEX
LINK UP
LINK FAIL
Table 16
SPEED
LINK UP
LINK FAIL
Besides duplex, speed, link and activity status, ADM7001 also provides cable information that can be shown on
LEDs when register 19 is programmed to distance LED display (see
Data Sheet
GPSI Transmit Diagram
LED Display
Speed LED Display
Duplex LED Display
Activity/Link LED Display
Table
14,
Table 15,Table 16
HALF
Link
DUPCOL
Blink (HIGH) When Collision
HIGH All the Time
Link/Activity
LOW
HIGH All the Time
show the On/Off polarity according to different recommended
42
SPDLED
0
1
1
Table
17)
FULL
LOW All the Time
HIGH All the Time
Activity
Blink (HIGH) When RX/TX
HIGH All the Time
Function Description
Rev. 1.07, 2005-09-12
Data sheet
ADM7001