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MYSON TECHNOLOGY
FEATURES
• IEEE802.3 and IEEE802.3u compliant. • Provide 16 RMII (Reduced Media Independent Interface) ports. • Programmable 1K/8K MAC addresses filtering database. • Store and forward switching function and bad packet filtering function. • Optional back_pressure/802.3x flow control/ flooding control/broadcast control. • Optional EEPROM Interface for advanced switch configurations. • 4MB/2MB packet buffer with SGRAM/SDRAM flexible memory interface. • Port VLAN/trunking. • Link/Rx activity, packet buffer utilization LED display. • 83MHz for non-blocking 16 port switch. • Build in internal/external memory test function. • 208 pin PQFP package, 3.3V operation voltage.
MTD516 (Preliminary)
GENERAL DESCRIPTION
The MTD516 complies fully with the IEEE802.3, 802.3u and 802.3x specifications and is a non-blocking 16 port 10M/100M Ethernet switch device. Support 16 RMII ports for 10M/100M operation. 4MB memory interface provides maximum 2730 packet buffers for Ethernet packet buffering. Up to 8192 address entrys are provided by the MTD516, and the MTD516 use full Ethernet address compare algorithm to minimize hashing collision events. The MTD516 provides EEPROM interface to config port trunking, port VLAN, static entry, 802.3x flow control threshold, flooding port, broadcast control threshold. Each MTD516 ports support 10M/100M auto-negotiation by MII management interface. The MTD516 also provides 2 pins for Link/ RX activity, packet buffer utilization LED display function.
16 Port 10M/100M Ethernet Switch
BLOCK DIAGRAM
SDRAM/ SGRAM Interface
Memory Controller
DMA0
MAC0
RMII0
DMA1
MAC1
RMII1
DMA2
Memory Arbiter
MAC2
RMII2
DMA3
MAC3
RMII3
3~12
DMA4
MAC4
RMII12
DMA13
Port Switch Logic
MAC13
RMII13
DMA14
MAC14
RMII14
DMA15
MAC15
RMII15
This datasheet contains new product information. Myson Technology reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of this procuts. No rights under any patent accompany the sales of the product. 1/27 MTD516 Revision 1.2 19/06/2000
MYSON TECHNOLOGY
SYSTEM DIAGRAM
MTD516 (Preliminary)
(**Progr ammable) SGRAM (512kx32x2)
(**OPTION) EEPROM
MTD516
SGRAM (256kx32x2)
LEDs
RMII0-7
RMII11-15
OCTAL PHYsceiver
MII management
OCTAL PHYsceiver
OCTAL Transformer
OCTAL Transformer
RJ45
RJ45
This datasheet contains new product information. Myson Technology reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of this procuts. No rights under any patent accompany the sales of the product. 2/27 MTD516 Revision 1.2 19/06/2000
MYSON TECHNOLOGY
1.0 PIN CONNECTION
MTD516 (Preliminary)
DQ10 DQ11 GND VCC DQ12 DQ13 DQ14 DQ15 DQ24 DQ25 DQ26 DQ27 DQ28 DQ29 DQ30 DQ31 LEDDATA LEDCLK EEDATA EECLK GND REFCLK VCC RESETB MDC MDIO TXD0_1 TXD0_0 TXEN0 CRSDV0 RXD0_0 RXD0_1 GND VCC TXD1_1 TXD1_0 TXEN1 CRSDV1 RXD1_0 RXD1_1 TXD2_1 TXD2_0 TXEN2 CRSDV.