Chip layout for implementing arbitrated high speed switching access of pluralities of I/O data ports to internally cached DRAM banks and the like

摘要

A novel chip layout for a network wherein pluralities of I/O data ports are each connected to transmit/receive SRAM buffer banks operable under arbitration units to access pluralities of internally cached DRAM banks via internal busses to enable switching data connections amongst all data ports through the appropriate buffers, the chip layout having, data ports substantially symmetrically placed with each data port connected to each arbitration unit and each transmit/receive buffer bank, and with each data port enabled to write into any DRAM bank, with the connections being effected such that each data port is substantially symmetric with respect to DRAM bank, arbitration unit and transmit/receive buffer banks and busses; and with timing clocks centrally placed on the chip to minimize clock skew by symmetric clock distribution.