1975 ad: Motorola's M6800 family

. Tuesday, April 30, 2013

Motorola's M6800 family creates the new age for microcomputer systems design. The M6800 family is the first LSI family designed as a coherent modular building block approach to the implementation of microcomputer systems. From the deceptively powerful MC6800 Microprocessor to the byte-organized family memories, to the capabilities expanding peripheral and communications interface adapters, the M6800 family plays together as the total product solution for microcomputer designs. Shared qualities place M6800 family in leadership position. Family devices are all state of the art high performance N-channel Silicon Gate units requiring only a single common +5 V power supply. All peripheral bus devices are directly bus and TTL compatible. Among the many notable family features are Basic I MHz operation, Direct Memory Access capability. 64 kilobytes of directly accessible memory in any combination of ROM, RAM, or peripheral registers, bi-directional data bus and wide address bus, simple yet powerful instruction set with enhanced addressing modes. Beyond all else, the family is distinguished by a set of intelligent programmable logic interface adapters for I/O communication requirements. Meet the family members. MC6800 Microprocessor. The executive control and processing block of Motorola's total product for microcomputer systems is the 8-bit MC6800 Microprocessor. The MC6800 is fast establishing a reputation for performance and throughput based on varied factors, including. Simple universal bus structure, powerful programming modes, and interrupt handling features. 16-bit address bus for direct address of up to 65,536 memory locations. 8 bit bi-directional parallel processing on a three-state data bus. These features only scratch the surface. MC6800 is a super 8 bit MPU. MC6820 Peripheral Interface Adapter. The totally unique PIA is a universal interface between peripheral equipment and the MPU bus. It's a flexible method, virtually without external logic, of connecting the MPU to status line or byte-oriented peripherals. The PIA features 8 bit bi-directional peripheral interface buses, handshake control logic for input and output peripheral operation. The functional configuration of the PIA may be changed by the MPU during system operation. There's more, but just remember this. The MC6820 provides total programmable logic for complete I/O task management. Memories designed for microprocessors. Another system advantage of the M6800 family is the set of byte-organized memories designed to maximize efficiency in many systems. Just as useful in some situations is the fact that non-family memories also fit in, usually without sacrifice. Here are the family memories. MCM6810 Static RAM. This 128 x 8 memory is designed for bus-organized systems. It needs no clocks or refreshing. Memory expansion is achieved with six chip select inputs. Two versions are available. The MCM6810L-1 is faster with an access speed of 575 ns (max). Access time of the MCM-6810L is 1. MCM6830 ROM. The MCM6830 also is byte-organized for application in bus-organized systems. It's a mask programmable 1024 x 8 bit ROM with a maximum access time of 575 ns. Expansion is achieved with four programmable chip select inputs. Communications power. One distinctive advantage of the M6800 family in the new wave of serial data communications systems is the inclusion of the necessary interface devices and MODEMs in the basic family. MC6850 Asynchronous Communications Interface Adapter. The ACIA includes control lines for direct MODEM interface and features 8 bit and 9 bit transmission. Odd, even or no parity. One or two stop bits. Optional divide by 1, 16, and 64 clock modes. Functional configuration of the ACIA is programmed via the data bus during system initialization, using a control register programmed by the MPU. When all is said, the ACIA provides complete I/O task management for serial communications. MC6860 MODEM. The 600 bps MODEM provides the necessary modulation, demodulation, and supervisory controls to implement a serial data communications link over a voice grade telephone channel. The MC6860 offers compatible functions for 100 series data sets and 1001 A/B data couplers. Of course the MODEM interfaces directly with the ACIA in microprocessor-based data comm systems. M6800 family second source. Motorola has solved the alternative source problem of many engineering and purchasing managers by signing an agreement with AMI for a true second source, where we share similar processes and the same masks. Additional devices support M6800 family. Next into the family's NMOS mix will be functions like a programmable timer module, 256 x4 and 1K x 1 static memories, and  a synchronous serial data adapter. While the family includes memories, others are often desirable. Additional appropriate Motorola memories are the MCM6831 8K ROM and MCM 6832 16K ROM and the MCM6815 dynamic 4K RAM. Motorola's Linear products group has designed a new family of interface functions around the memories and MPU family and our CMOS people have come up with supplemental functions including a bit rate generator available now and a new RAM and Tone Encoder on the way. M6800 Software and Hardware. Motorola's M6800 support software is a cohesive interactive system for program development and checkout available on both G.E. and United Computing Service timesharing. A Fortran IV source deck cross assembler for 16 and 32-bit machines is available for customer host computers. Hardware system development tools are the MEC6800 Evaluation Module, a complete minimum microcomputer system on a single board with RS232 interface, and the EXORciser, a system prototyping minicomputer complete with power supply and functional board options. Other diverse activities include a three-day technical design seminar in Phoenix and major U.S. cities throughout '75. What it's all about: simplify design, reduce costs. All this distills to the simple idea that the M6800 family system architecture is designed to achieve. Minimization of components. Minimization of support packages. Interface simplicity. Minimization of simplicity of power requirements. Systems throughout. There's a Motorola salesman ready to help you keep up with the leaders...and ahead of the rest. Get more detailed information by writing to Motorola Semiconductor Products Inc., P.O. Box 20912, Phoenix Arizona 85036. Discover why the M6800 family creates a new age as the standard against which all others must be measured: Why M6800 is now the benchmark family for microcomputer systems. Motorola M6800 Benchmark family for microcomputer systems.

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