T71L6816A Datasheet PDF - Taiwan Memory Technology
| Part Number | T71L6816A | |
| Description | Sixteen-port 10/100 Switch | |
| Manufacturers | Taiwan Memory Technology | |
| Logo |  |
|
|
There is a preview and T71L6816A download ( pdf file ) link at the bottom of this page. Total 22 Pages | ||
Preview 1 page No Preview Available !
www.DataSheet4U.com
tm TE
CH
Preliminary T71L6816A
Sixteen-port 10/100 Switch
________________________________________________________
The T71L6816A is a sixteen-port 10/100Mbps dual speed ethernet switch integrated with
a built-in 2K entries of address table and supports a 4Mb external SSRAM. T71L6816A is
also a high performance Fast-Ethernet switch with fully compliance with the IEEE802.3,
802.3u and 802.3x specifications. The T71L6816A can be implemented with external PHY chips
and 4Mb pipe-line SSRAM. By default, it is targeted for applications to the stand -alone
switch for low-cost SOHO and small enterprise market.
Features
l Support sixteen 10/100 Ethernet ports with RMII interface.
l External memory needed for 4Mb pipe-line SSRAM.
l Incorporating with private output buffering scheme to prevent HOL (head of line) blocking.
l Each port support priority-based queues with 4 levels and 802.1p QoS.
l Wire-speed store-and-forward switching with low latency.
l Automatic address learning with filtering of local frames or illegal frames.
l Embedded 2K entries of address look-up table.
l Support full/half duplex operations. DataSheet4U.com
l Support auto-negotiation via MDIO to detect speed and duplex status.
l Serial EEPROM interface for auto-configuration for features.
l Support IEEE802.3x flow control for full-duplex operation.
l Support Back-Pressure flow control for half-duplex operation.
l Support port-trunking mode to aggregate the bandwidth to provide the functions of load-sharing and
link backup.
l Support broadcast storm control scheme.
l Maximum 3 port-based VLAN groups can be defined by user.
l Support port-based port monitoring/snooping defined by user.
l Only one 50Mhz oscillator needed.
l 208-pin BGA, 3.3V with .18 µm CMOS technology.
DataShee
DataSheet4U.coTmaiwan Memory Technology, Copy-Right reserved.
Change to products or specifications without notice.
P. 1
DataSheet4 U .com
Publication Date:Jun. 2001
Revision:0.A
|
| |
 
www.DataSheet4U.com
tm TE
CH
3. Functional Description
Preliminary T71L6816A
3.1 Reset
The T71L6816A will determine some function features chosen by the content of 24LC02
serial EEPROM which was loaded after power on reset. Also, the T71L6816A will write
the abilities derived from 24LC02 or internal default value if 24LC02 is not present
to connected PHY management registers via MDC/MDIO.
et4U.com
3.2 RMII Interface
The T71L6816A provides the low pin count RMII (Reduced Media Independent Interface)
interface capable of supporting 10/100 Mbps data rates between PHY and T71L6816A.
A single clock, 50MHz, sourced from an external clock input is needed for receive(RX)
and transmit(TX) to provide an independent 2-bit wide (di-bit) transmit and receive
data paths. In the case of the REFCLK is 10 times the data rate, namely, 100Mbps mode,
each data di -bit must be output on TXD[1:0] and input on RXD[1:0] for ten successive
REFCLK cycles.
RMII specification signals are listed below:
Signal Name
REFCLK
CRSDV
RXD[1:0]
TXEN
TXD[1:0]
Direction
(with respect to
PHY)
Input
Output
Output
Input
Input
DaDtiarSehceteit4oUn .com
(with respect to
Use
T71L6816A)
Input
Synchronous clock reference for Rx,
Tx and control interface
Input
Carrier sense / receive data valid
Input
Receive data
Output
Transmit enable
Output
Transmit data
3.3 Data Reception
The port will enter the receive-state when the CRSDV signal in the RMII interface is
asserted and t hen the RMII presents the received data in two-bit(di-bit) format that are
synchronous to the RMII reference clock, namely, REFCLK. The T71L6816A will then try
to identify the occurrence of the SFD(Start Frame Delimiter) pattern “10101011”. Once
the SFD was identified, all preamble data prior to SFD will be discarded and the frame
data will be forwarded and stored in the buffer of the switch.
DataShee
DataSheet4U.coTmaiwan Memory Technology, Copy-Right reserved.
Change to products or specifications without notice.
P. 5
DataSheet4 U .com
Publication Date:Jun. 2001
Revision:0.A
Preview 5 Page |
Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for T71L6816A electronic component. |
| Information | Total 22 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ T71L6816A.PDF Datasheet ] | |
Share Link :
Electronic Components Distributor
|
An electronic components distributor is a company that sources, stocks, and sells electronic components to manufacturers, engineers, and hobbyists. |
| SparkFun Electronics | Allied Electronics | DigiKey Electronics | Arrow Electronics |
| Mouser Electronics | Adafruit | Newark | Chip One Stop |
Featured Datasheets
| Part Number | Description | MFRS |
| T71L6816A | The function is Sixteen-port 10/100 Switch. Taiwan Memory Technology | |
Semiconductors commonly used in industry:
1N4148 |
BAW56 |
1N5400 |
NE555 | | ||
Quick jump to:
T71L
1N4
2N2
2SA
2SC
74H
BC
HCF
IRF
KA | ||