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2. Requirements Existing Z-Dok interface 10G Ethernet – SFP+ Free chips? Fast Memory  More QDRII+ Large Memory for transient buffer  DDR? External Processor.

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Presentation on theme: "2. Requirements Existing Z-Dok interface 10G Ethernet – SFP+ Free chips? Fast Memory  More QDRII+ Large Memory for transient buffer  DDR? External Processor."— Presentation transcript:

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2 Requirements Existing Z-Dok interface 10G Ethernet – SFP+ Free chips? Fast Memory  More QDRII+ Large Memory for transient buffer  DDR? External Processor

3 ROACH2

4 ROACH2 Issues... FPGA choice Form factor Processor + bus interface Monitoring of temperatures and voltages/currents Power supply ADC interface Number/type of memories 10Ge type/number Testing/programming General interfaces

5 FPGA choice Virtex6

6 Form factor ATX I/O area is limiting 1U height is important Cooling

7 Processor and bus interface 32 bit would be “nice”... how “nice” exactly? AMCC availability? Changing? ARM??

8 Monitoring Temperature Fans Voltages Currents Remote access?

9 Power supply AC or DC?

10 ADC Interface Z-DOK likely best choice for now Serial I/F would need too many transceivers

11 Memories... QDR II+ 36 bit or 18 bit? 2, 3, 4 or more? DDRn Can do 4 x QDRII+ 18 bit wide + DDR with SX475T

12 10 Gigabit Ethernet Time to go SFP+ 6x … 8x? 1 Gigabit from FPGA

13 Testing and programming Suggestion for a single USB device interface using FTDI USB-JTAG bridge Eval kit will be tested with ROACH Production testing via JTAG

14 General interfaces I²C USB Host (1 x ?) Serial Ethernet control and monitoring 10/100 IEEE 1588

15 One possible configuration 1 DDR DIMM 4 x 18 bit wide QDRII+'s 2 x Z-DOK 8 x SFP+ Diff GPIO (40 pair) 32 bit processor bus 2 x 1G ethernet from FPGA Leaves 34 “spare” I/O's


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