Kontron PB-DOUT8 - Manual (Page 31)

PB-DOUT8
22 Oct 98
Software References
Page 4 - 3 Man. ID 17984, Rev. Index 0110
4. Software References
4.1 Technical Features
PB-DOUT8 is wired via the carrier board it is fit into to a 50-pin DSUB or to a 50-pin FB
connector. There are no jumpers on the PB-DOUT8 piggyback.
During VMEbus reset, all low-side and high-side channels are switched off. Channels
are kept in sitched-off condition also during power-up/down (undervoltage) of the
VMEbus. External reset from VMOD2/CXM-IMOD is supported. Interrupts are sup-
ported, including a software-programmable IRQ vector.
The PB-DOUT8 read-back for output registers, including status bits, contribute to sim-
plify software. All output registers are “0” after a hardware reset. Each group of channels
has its own register.
4.2 Memory Map
The PB-DOUT8 software interface supports eight I/O lines with eight byte-wide read/
write registers. If your VMOD-2 is jumpered to the base address $87FE2400, the mem-
ory map is the following:
Base +$01 Byte 1 DOUT00read/write
Base +$03 Byte 1 DOUT01read/write
Base +$05 Byte 1 DOUT02read/write
Base +$07 Byte 1 DOUT03read/write
Base +$09 Byte 1 DOUT04read/write
Base +$0B Byte 1 DOUT05read/write
Base +$0D Byte 1 DOUT06read/write
Base +$0F Byte 1 DOUT07read/write
..... reserved do not access
Base +$79 Interrupt control registerread/write
Base +$7B Assembly revision coderead/write*
Base +$7D Software revision coderead/write*
Base +$7F ID Byte ($E3)read/write*
Legend
read/write read/write operation
* writing is possible, but data are not used
!
Attention!
Depending on the number of channels being switched on/off and
the actual load, PB-DOUT8 may require forced cooling if run above
standard/extended temperatures.