STE10A Datasheet, PDF (5/82 Pages) STMicroelectronics – PCI 10/100 Ethernet controller with integrated PHY (3.3V)

STE10/100A
Overview
1.2
Detailed features
FIFO
● Provides independent transmission and receiving FIFOs, each 2k bytes long
● Pre-fetches up to two transmit packets to minimize inter frame gap (IFG) to 0.96us
● Retransmits collided packet without reload from host memory within 64 bytes.
● Automatically retransmits FIFO under-run packet with maximum drain threshold until
3rd time retry failure threshold of next packet.
PCI interface
● Provides 32-bit PCI bus master data transfer
● Supports PCI clock with frequency from 0Hz to 33MHz
● Supports network operation with PCI system clock from 20MHz to 33MHz
● Provides performance meter and PCI bus master latency timer for tuning the threshold
to enhance the performance
● Provides burst transmit packet interrupt and transmit/receive early interrupt to reduce
host CPU utilization
● As bus master, supports memory-read, memory-read-line, memory-read-multiple,
memory-write, memory-write-and-invalidate command
● Supports big or little endian byte ordering
EEPROM/Boot ROM interface
● Provides writable flash ROM and EPROM as boot ROM, up to 128Kbit
● Provides PCI to access boot ROM by byte, word, or double word
● Re-writes flash boot ROM through I/O port by programming register
● Provides serial interface for read/write 93C46 EEPROM
● Automatically loads device ID, vendor ID, subsystem ID, subsystem vendor ID,
maximum-latency, and minimum-grand from the 64 byte contents of 93C46 after PCI
reset de-asserted
MAC/physical
● Integrates the complete set of physical layer 100BASE-TX and 10BASE-T functions
● Provides full-duplex operation in both 100Mbps and 10Mbps modes
● Provides auto-negotiation (NWAY) function of full/half duplex operation for both 10 and
100 Mbps
● Provides MLT-3 transceiver with DC restoration for base-line wander compensation
● Provides transmit wave-shaper, receive filters, and adaptive equalizer
● Provides MAC and transceiver (TXCVR) loop-back modes for diagnostic
● Built-in stream cipher scrambler/ de-scrambler and 4B/5B encoder/decoder
● Supports external transmit and receive transformer with 1:1 turn ratio
5/82