Digilent D2-SB Reference Manual

3, D2-SB Reference Manual Digilent, Inc. www.digilentinc.com Page 3 Total board current is dependant on FPGA configuration, clock frequency, and external connections. In test circuits with roughly 50K gates routed, a 50MHz clock source, and a single expansion board attached (the D…

1, Digilent D2-SB D D i i g g i i l l e e n n t t D D 2 2 - - S S B B S S y y s s t t e e m m B B o o a a r r d d R R e e f f e e r r e e n n c c e e M M a a n n u u a a l l www.digilentinc.com Revision: September 18, 2003 246 East Main | Pullman, WA 99163 (509) 334 6306 Voice and Fax…

7, D2-SB Reference Manual Digilent, Inc. www.digilentinc.com Page 7 FPGA Pin Assignments Pin # Function Pin # Function Pin # Function Pin # Function 1 GND 53 VCCO 105 VCCO 157 TDO 2 TMS 54 M2 106 PROG 158 GND 3 PC-IO17 55 PB-IO14 107 INIT 159 T…

5, D2-SB Reference Manual Digilent, Inc. www.digilentinc.com Page 5 Pin 1: GND Pin 2: VU Pin 3: 3.3V Pin 39 Pin 40 Pin 4 Pin 39 Pin 40 Expansion connector pin locations A1 pins 4 -21 Sys Bus (18) A2 pins 22 -35 pins 4 -21 …

4, D2-SB Reference Manual Digilent, Inc. www.digilentinc.com Page 4 System Bus The “system bus” is a protocol used by certain expansion boards that mimics a simple 8-bit microprocessor bus. It uses eight data lines, six address lines, a write-enable (WE) strobe that can b…