WG82574L S LBA9 Intel, WG82574L S LBA9 Datasheet - Page 189

• Manufacturer Part Number: WG82574L S LBA9
• Description: CONTROLLER, ENET, INTEL 82574L, 64PQFN
• Manufacturer: Intel

Specifications of WG82574L S LBA9

• Ethernet Type: IEEE 802.3, IEEE 802.3u, IEEE 802.3ab
• Supply Voltage Range: 3V To 3.6V
• Operating Temperature Range: 0°C To +85°C
• Digital Ic Case Style: QFN
• No. Of Pins: 64
• Package / Case: QFN
• Interface Type: I2C, JTAG, PCI, SPI
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Inline Functions—82574 GbE Controller
Note:
7.7
7.7.1
1. While in Smart Power Down mode, the blinking durations are increased by 5x to 1 second and
415 ms, respectively.
Each of the three LED's might be configured to use one of a variety of sources for
output indication. The Mode bits control the LED source:
The IVRT bits enable the LED source to be inverted before being output or observed by
the blink-control logic. LED outputs are assumed to normally be connected to the
negative side (cathode) of an external LED.
The BLINK bits control whether the LED should be blinked while the LED source is
asserted, and the blinking frequency (either 200 ms on and 200 ms off or 83 ms on and
83 ms off)
such as ACTIVITY indication, cause LED transitions, which are sufficiently visible to a
human eye. The same blinking rate is shared by all LEDs.
Note that the LINK/ACTIVITY source functions slightly different from the others when
BLINK is enabled. The LED is off if there is no LINK, on if there is LINK and no
ACTIVITY, and blinking if there is LINK and ACTIVITY.
Time SYNC (IEEE1588 and 802.1AS)
Overview
Measurement and control applications are increasingly using distributed system
technologies such as network communication, local computing, and distributed objects.
Many of these applications are enhanced by having an accurate system wide sense of
time achieved by having local clocks in each sensor, actuator, or other system device.
Without a standardized protocol for synchronizing these clocks, it is unlikely that the
benefits are realized in the multi-vendor system component market. Existing protocols
for clock synchronization are not optimum for these applications. For example, Network
Time Protocol (NTP) targets large distributed computing systems with ms
synchronization requirements.
• LINK_100/1000 is asserted when link is established at either 100 or 1000 Mb/s.
• LINK_10/1000 is asserted when link is established at either 10 or 1000 Mb/s.
• LINK_UP is asserted when any speed link is established and maintained.
• ACTIVITY is asserted when link is established and packets are being transmitted or
• LINK/ACTIVITY is asserted when link is established AND there is NO transmit or
• LINK_10 is asserted when a 10 Mb/s link is established and maintained.
• LINK_100 is asserted when a 100 Mb/s link is established and maintained.
• LINK_1000 is asserted when a 1000 Mb/s link is established and maintained.
• FULL_DUPLEX is asserted when the link is configured for full duplex operation.
• COLLISION is asserted when a collision is observed.
• PAUSED is asserted when the device's transmitter is flow controlled.
• LED_ON is always asserted; LED_OFF is always de-asserted.
received.
receive activity
1
. The blink control can be especially useful for ensuring that certain events,
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