ABI-V6-4 interface provides a flexible, full function, one to four channel, dual redundant MIL-STD-1553 interface to the VMEbus system. This Advanced Bus Interface (ABI) architec- ture provides concurrent and independent operation of a Bus Controller (BC), 31 Remote Terminals (RT), and dual function Bus Monitoring (BM). The ABI-V6-4 interface equips the VMEbus system with a complete 1553 interface. This includes 1553A/1553B selections, pointer-driven transmit and receive buffers and extensive programmable event interrupts.
BC simulation structures consist of linked lists of 1553 command messages: BC-to-RT, RT- to-BC, RT-to-RT, mode code, broadcast and time delay block transmissions. We define RT simulation as a simple series of pointers to RT definition tables. The RT definition tables in turn point to control data buffers. We define the bus activity we want to monitor in both the Map and Sequential monitoring modes. This provides user defined linked lists of data buffers and sequential 1553 activity. The user can time stamp and/or double buffer the 1553 activity. Both monitoring modes perform broad error monitoring. They also provide a comprehensive error table that the host processor can read at any time.