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The PCI Correlator Interface is a plug-in card that allows the connection between the PCI bus and the dedicated Correlator 24/32 bit output bus. As the key logic on the card is handled by a Xilinx FPGA and a highly configurable PCI interface IC, many alternate functions not included here, can be easily implemented.
PCI Correlator Interface
Notable Features are :
Maximum PCI data rate of 66MB/second (single control/data mapping).
All I/O lines on Correlator Bus, and Auxillary Bus balanced TTL.
Programmable external data transfer length from 1 to 16384 data words (32 bit).
Supports simultaneous transfer from correlator bus to buffer memory and buffer memory to PCI bus.
Occupies 256KB block of memory space on PCI bus.Control and Status as 5 X 32 bit registers.
Interrupts on Data Transfer Completion, Timeout error, External Signal and/or any/all of the 4 Auxillary input lines..
4 auxillary input and 4 auxillary output lines.
Transaction timeout limiter set to 256 system (usually PCI) clock periods.
Selectable system clock rates: PCI, or onboard crystal oscillator.
Activity light for PCI transactions, and for Correlator Bus transactions.