Microchip LAN9250 Bedienungsanleitung
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2023 Microchip Technology Inc. and its subsidiariesDS00001913B-page 1
Highlights
•16-bit 10/100 industrial Ethernet controller & PHY
•Interfaces to most 8/16-bit embedded controllers
and 32-bit embedded controllers with an 8/16-bit
bus
•Integrated Ethernet PHY with HP Auto-MDIX
•Integrated Ethernet MAC
•Compliant with Energy Efficient Ethernet 802.3az
•Wake on LAN (WoL) support
•Integrated IEEE 1588v2 hardware time stamp unit
•Cable diagnostic support
•1.8V to 3.3V variable voltage I/O
•Integrated 1.2V regulator for single 3.3V operation
•Low pin count and small body size package
Target Applications
•Cable, satellite, and IP set-top boxes
•Digital televisions & video recorders
•VoIP/Video phone systems
•Home gateways
•Test/Measurement equipment
•Industrial automation systems
Key Benefits
•Single-chip Ethernet controller
-Fully compliant with IEEE 802.3/802.3u standards
-Integrated Ethernet MAC and PHY
-10BASE-T and 100BASE-TX support
-100BASE-FX support for external fiber transceiver
-Automatic polarity detection and correction
(HP Auto-MDIX)
-Full- and Half-duplex support
-Full-duplex flow control
-Backpressure for half-duplex flow control
-Preamble generation and removal
-Automatic 32-bit CRC generation and checking
-Automatic payload padding and pad removal
-Loop-back modes
•Eliminates dropped packets
-Internal buffer memory can store over 200 packets
-Automatic PAUSE and back-pressure flow control
•Flexible address filtering modes
-One 48-bit perfect address
-64 hash-filtered multicast addresses
-Pass all multicast
-Promiscuous mode
-Inverse filtering
-Pass all incoming with status report
-Disable reception of broadcast packets
•8/16-Bit Host Bus Interface
-Indexed register or multiplexed bus
-16Kbyte FIFO with flexible TX/RX allocation
-SPI / Quad SPI support
•IEEE 1588v2 hardware time stamp unit
-Global 64-bit tunable clock
-Ordinary clock: timeTransmitter / timeReceiver, one-
step / two-step, end-to-end / peer-to-peer delay
-Fully programmable timestamp on TX or RX,
timestamp on GPIO
-64-bit timer comparator event generation (GPIO or IRQ)
•Comprehensive power management features
-3 power-down levels
-Wake on link status change (energy detect)
-Magic packet wakeup, Wake on LAN (WoL), wake on
broadcast, wake on perfect DA
-Wakeup indicator event signal
-Link status change
•Power and I/O
-Integrated power-on reset circuit
-Latch-up performance exceeds 150mA
per EIA/JESD78, Class II
-JEDEC Class 3A ESD performance
-Single 3.3V power supply
(integrated 1.2V regulator)
•Additional Features
-Multifunction GPIOs
-General purpose timer
-Optional EEPROM interface
-Ability to use low cost 25MHz crystal for reduced BOM
•Packaging
-Pb-free RoHS compliant 64-pin QFN or 64-pin TQFP-
EP
•Available in commercial, industrial, and extended
industrial* temp. ranges
*Extended temp. (105ºC) is supported only in the 64-QFN with an
external voltage regulator (internal regulator must be disabled) and
2.5V (typ) Ethernet magnetics.
LAN9250
10/100 Industrial Ethernet Controller & PHY
Produktspezifikationen
| Marke: | Microchip |
| Kategorie: | Nicht kategorisiert |
| Modell: | LAN9250 |
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