DE3 Daughter Baord Design Package_V1.2

This Daughter Board Design Packege is used for users to design their own daughter boards on DE3. The purpose of each file is listed in the table below:

Item    File Name               Description
1	DE3_MECHANICAL.BRD          Board file of DE3 mechanical drawing.
2	C2H.BRD                     Board file of connector board which connects two DE3 or forms a loopback of two HSMC connectors of one DE3.
3	C4H.BRD                     Board file of connector board with 4 HSTC connectors to connect up to four DE3.
4	D1F.BRD                     Board file of daughter board with one HSTC connector. Its length is the distance between two HSTC connectors.
5	D1H.BRD                     Board file of daughter board with one HSTC connector. Its length is half the distance between two HSTC connectors.
6	D2C.BRD                     Board file of daughter board which occupies 2 column HSTC connectors for different rows.
7	D2R.BRD                     Board file of daughter board which occupies 2 row HSTC connectors for different columns.
8	D4F.BRD                     Board file of daughter board which occupies 4 HSTC connectors.
9	DE3_HSTC.DSN                Schematic design of DE3 HSTC interface in OrCAD. 
10  DE3_HSTC_DB.pdf             Schematic design of DE3 HSTC interface in PDF format.
11  DE3_DB_EXAMPLE.DSN          Schematic design of HSTC interface dauhter board in OrCAD.
12  DE3_DB_EXAMPLE.pdf          Schematic design of HSTC interface dauhter board in PDF format.
13	HSTC AND DDR2.xls           Pin assignment of DDR2 and DDR3 for DE3.
14	QTH-090-05-F-D-A-K.pdf      Datasheet of DE3 HSTC male connector
15	QSH-090-01-F-D-A-K.pdf      Datasheet of DE3 HSTC female connector
16	GPIO.pdf                    Mechanical data of GPIO connector
17	GPIO1.pdf                   Mechanical data of GPIO connector
18	DE3_DB_example.brd          Board file of DE3 daugther board mechanical drawing.
19	QTH-090-05-F-D-A-K.pdf      Samtec specification for male HSTC connector on the top side of DE3 board.
20	QSH-090-01-F-D-A-K.pdf      Samtec specification for female HSTC connector on the bottom side of DE3 board.