The CC94 isolated output board is a VME slave module. The module decodes address lines A1 to A15 and only responds when receiving the address modifier codes $29 and/or $2d (short supervisory/ non-privileged I/O access).
The module appears to the system as 8 byte locations which can be placed on every 8 byte boundary in the 64 kByte short address space.
Each channel appears to the system as an 8 bit memory location. Data written to the outputs is latched and can be read back. On board "Power On" reset circuit de-activates all outputs. Outputs are optionally de-activated by SYSRES*.
For more information about the CC94, please contact info@compcontrol.com.
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