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Número de pieza | STE100A | |
Descripción | PCI 10/100 Ethernet controller | |
Fabricantes | ST Microelectronics | |
Logotipo | ||
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STE10/100A
PCI 10/100 Ethernet controller with integrated PHY (3.3V)
Features
■ IEEE802.3u 100BASE-TX and IEEE802.3
10BASE-T compliant
■ Support for IEEE802.3x flow control
■ IEEE802.3u auto-negotiation support for
10BASE-T and 100BASE-TX
■ PCI bus interface rev. 2.2 compliant
■ ACPI and PCI power management standard
compliant
■ Support for PC99 wake on LAN
■ Provides 32-bit PCI bus master data transfer at
PCI clocks of 20-33 MHz
■ Provides writable EEPROM/Boot rom interface
■ Provides independent transmission and
receiving FIFOs, each 2k bytes long
■ Supports big endian or little endian byte
ordering
■ ACPI and PCI compliant power management
functions offer significant power-savings
performance
■ Provides general purpose timers
■ 128-pin QFP package
PQFP128 (14mm x 20mm x 2.7mm)
Description
The STE10/100A is a high performing PCI fast
ethernet controller with integrated physical layer
interface for 10BASE-T and 100BASE-TX
applications.
It was designed with advanced CMOS technology
to provide glueless 32-bit bus master interface for
PCI bus, boot ROM interface, CSMA/CD protocol
for fast ethernet, as well as the physical media
interface for 100BASE-TX of IEEE802.3u and
10BASE-T of IEEE802.3. The auto-negotiation
function is also supported for speed and duplex
detection.
The STE10/100A provides both half-duplex and
full-duplex operation, as well as support for full-
duplex flow control. It provides long FIFO buffers
for transmission and receiving, and early interrupt
mechanism to enhance performance. The
STE10/100A also supports ACPI and PCI
compliant power management function
February 2007
Rev 8
1/82
www.st.com
82
1 page 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
5 Page STE10/100A
Pin description
Table 1.
Pin no.
91
89
88
Pin description (continued)
Name
Type
Description
LED M1-
Fd/Col
or
LED M2-
10 link
This pin can be programmed as mode 1 or mode 2:
For mode 1:
LED display for full duplex or collision status. This pin will be
driven on continually when a full duplex configuration is
detected. This pin will be driven at a 20 Hz blinking frequency
O when a collision status is detected in the half duplex
configuration.
For mode 2:
LED display for 10Ms/s link status. This pin will be driven on
continually when 10Mb/s network operating speed is
detected.
Vaux-detect
Vcc-detect
I
When this pin is asserted, it indicates an auxiliary power
source is supported from the system.
I
When this pin is asserted, it indicates a PCI power source is
supported.
Pin no.
Digital power pins
5,11,19,31,36,39,45,51,55,75,93,112,115,125
8,14,27,38,40,48,60,85,111,122,128
Analog power pins
94,96,102,106,110
95,99,100,103,108
Vss
Vdd
AVss
AVdd
Name
11/82
11 Page |
Páginas | Total 30 Páginas | |
PDF Descargar | [ Datasheet STE100A.PDF ] |
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