The CC92 isolated digital input board is a VME slave module. The module consists of 4 fully independent channels with 8 inputs each. Each channel is capable to detect a change in any of its input lines and may generate an interrupt when it detects such a change. In addition to the standard CC92 module, a B type module is available which replaces the change of state circuit with a pattern check circuit. The pattern check circuit can generate an interrupt when a predefined pattern is detected at the inputs.
The used interrupter module is a MC68153 (BIM) which has a software programmable interrupt level, interrupt vector and interrupt mask for each of the four channels.
The module only 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 32 byte locations which can be placed on every 32 byte boundary in the 64 KByte short address space.
For more information about the CC92, please contact info@compcontrol.com.
[Block diagram]
[Photo] [Html Manual] [PDF Manual]
[Home]