FLLXT1000BA.C4QE000 Intel, FLLXT1000BA.C4QE000 Datasheet - Page 35

• Manufacturer Part Number: FLLXT1000BA.C4QE000
• Manufacturer: Intel

Specifications of FLLXT1000BA.C4QE000

• Lead Free Status / RoHS Status: Not Compliant

2.3.9
2.3.9.1
2.3.9.2
Datasheet
Document #: 249276
Revision #: 002
Rev. Date: 07/20/01
Figure 14. Quick Status Register
QSTAT
A simple signature is used to delineate the start of the QSTAT register (Address 17) information,
allowing a very simple interface to be designed. The contents of the Quick Status register are
output on QSTAT. (See
16-bits of the Quick Status Register are separated by a signature (0000000000000011). The
LXT1000 sources this status information on the falling edge of QCLK.
This information provides a continuous status update of several different attributes and modes of
the PHY, and can be used to sense RX, TX, and COL as well as to monitor the status and speed of
the auto-negotiation process. The information is provided on an unsolicited basis, without having
to issue read requests, which is ideal for hardware applications that require constant monitoring of
link status with minimal interaction.
LED Functions
The LXT1000 provides seven status indicator LEDs.
Link Up
When the link is up, these LEDs report link status as follows:
Link Down
When the link is down, these LEDs report the status of the DSPs for the four channels, as shown in
Table 16 on page
•
•
•
•
•
•
•
Transmission
Receive
1000 Operation
10/100 Operation
Duplex (Full- or Half-duplex)
Link
Collision (Half-duplex only) During full-duplex Gigabit operation, this LED is asserted
whenever packets are simultaneously transmitted and received.
D15 D14 D13 D12 D11 D10 D9
0
0
36.
0
Table 67 on page 100
0
0
16-BIT SIGNATURE
QUICK STATUS REGISTER
0
0
D8 D7 D6 D5 D4
0
for Quick Status bits definition and description.) The
0
Gigabit Ethernet Transceiver — LXT1000
0
0
0
D3 D2 D1 D0
0
0
1
1
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