Teledyne LeCroy PCIBX64-X - Manual (Page 16)

14
Read-Write Routines
1) To write:
Set Address
Reset the AS and DS signals outp(0x37a, 0xde);
Set an Address in parallel port register outp(0x378, 0xaddress_value from the menu);
Latch the value in PCI card Address register outp(0x37a, 0xd6);
Wait, 100 us minimum
Reset the AS and DS signals outp(0x37a, 0xde);
Write Data
Set a Data in parallel port register outp(0x378, 0xdata_value from menu);
Latch the value in PCI card Data register outp(0x37a, 0xdc);
Wait, 100 us minimum
Reset the AS and DS signals outp(0x37a, 0xde);
2) To read :
Set Address
Reset the AS and DS signals outp(0x37a, 0xde);
Set an Address in parallel port register outp(0x378, 0xaddress_value from the menu);
Latch the value in PCI card Address register outp(0x37a, 0xd6);
Wait, 100 us minimum
Reset the AS and DS signals outp(0x37a, 0xde);
Set the port to read mode outp(0x37a, 0xff);
Read Register and display I = inp(0x378);
Reset the AS and DS signals outp(0x37a, 0xde);
3) Extended Write for voltage and current conversion routine:
Set Address
Reset the AS and DS signals outp(0x37a, 0xde);
Set an Address in parallel port register outp(0x378, 0xaddress_value from the menu);
Latch the value in PCI card Address register outp(0x37a, 0xd6);
Wait, 100 us minimum
Reset the AS and DS signals outp(0x37a, 0xde);
Write Data
Reset the AS and DS signals outp(0x37a, 0xde);
Set a Data in parallel port register outp(0x378, 0xdata_value);
Latch the value in PCI card Data register outp(0x37a, 0xdc);
Wait 2 ms
Reset the AS and DS signals outp(0x37a, 0xde);