DRV11-J Replacement Module – M8049
DRV11-J general purpose parallel interface controller for Qbus systems. Direct replacement for Digital’s DRV11-J (M8049)
The DRV11-J Replacement Module – M8049 (DCQ-1400) is a parallel interface for Q-bus systems that provides 64 input/output data lines. The DCQ-1400 is software and hardware compatible with Digital’s DRV11-J Q-bus controller and can be used as a direct replacement.
The DCQ-1400 includes an advanced interrupt structure with bit interrupt ability up to 16 lines, programmable interrupt vectors, and program selection of fixed or rotating interrupt priority within the DCQ-1400.
The DCQ-1400’s interrupt capability for real time response make it especially useful for sensor I/O applications. It can also be used as a general purpose interface to custom devices, and two DCQ-1400’s can be connected back-to-back as a link between two systems.
The DCQ-1400 is a dual-width controller that can be installed into a variety of PDP-11 and MicroVAX Digital systems.
The DCQ-1400 provides the same operating features as Digital’s DRV11-J:
- Four 3-state 16-bit parallel I/O ports
- Acceptance of up to 16 external interrupt requests
- Programmable interrupt vector addresses
- Program-controlled input/output operations
- Programmable operating modes
The DCQ-1400 is application and diagnostic compatible providing a direct replacement for the DRV11-J. Diagnostic CVDRDB0 requires supplied patches to run all tests.
The DCQ-1400 is signal and connector compatible to Digital’s DRV11-J allowing use of existing Digital user cables.