INTRODUCTION
The UT1553 RTMP (figures 1 and 4) is a monolithic, CMOS, VLSI integrated circuit that meets all requirements for a dual-redundant MIL-STD-1553 Remote Terminal interface. The RTMP’s advanced design supports both MIL-STD-1553A and MIL-STD-1553B serial data bus protocols, including differences in the status word response time and bit definitions, providing the system designer a single-chip solution to most Remote Terminal interface requirements.
The UT1553 RTMP provides all requisite 1553 protocol and data handling, 1553 message error checking, DMA handshake and control signals, and comprehensive self-test capabilities. The RTMP’s pointer-based, programmable memory-mapping architecture permits the host to map 1553 message data anywhere in the 64K memory space. This advanced memory mapping, along with the RTMP’s control and status functions, minimize the host system’s 1553 interface overhead.
The UT1553 RTMP is a member of UTMC’s complete family of high-reliability monolithic MIL-STD-1553 interface products.

FEATURES
□ Complete MIL-STD-1553 Remote Terminal Interface
□ Mode selectable to comply with either MIL-STD-1553A or MIL-STD-1553B bus protocol
□ Mil-STD-1773 compatible
□ Remote terminal operation is certified by ASD/ENASC (SEAFAC)
□ Implements all dual-redundant Remote Terminal mode
   codes and operational functions including broadcast
   commands
□ Provides handshake control for quad-redundant systems
□ Data pointers permit programmable memory mapping
   for 1553 data over the entire 64K host memory space
□ Provides all handshaking signals for a DMA interface
□ Stores 1553 command word and time-tag information
   with all incoming data for enhanced data management
□ Three-state address bus, databus, and control signals simplify DMA operations
□ Supports end-of-command activity and data bus error interrupts
□ Self-test capability
□ Available as a gate array macrocell
□ Available in 84-pin pingrid array, 84-lead leadless chip carrier, or 84-lead flatpack packages
□ Standard Microcircuit Drawing 5962-88645 available - QML Q compliant