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TMS370C311A Datasheet(PDF) 5 Page - Texas Instruments |
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TMS370C311A Datasheet(HTML) 5 Page - Texas Instruments |
5 / 52 page TMS370Cx1x 8-BIT MICROCONTROLLER SPNS012F -- MAY 1987 -- REVISED FEBRUARY 1997 5 POST OFFICE BOX 1443 HOUSTON, TEXAS 77251--1443 description (continued) The TMS370Cx1x family provides two low-power modes (STANDBY and HALT) for applications where low-power consumption is critical. Both modes stop all CPU activity (that is, no instructions are executed). In the STANDBY mode, the internal oscillator and the general-purpose timer remain active. In the HALT mode, all device activity is stopped. The device retains all RAM data and peripheral configuration bits throughout both low-power modes. The TMS370Cx1x features advanced register-to-register architecture that allows direct arithmetic and logical operations without requiring an accumulator (for example, ADD R24, R47; add the contents of register 24 to the contents of register 47 and store the result in register 47). The TMS370Cx1x family is fully instruction-set-compatible, providing easy transition between members of the TMS370 8-bit microcontroller family. The SPI provides a convenient method of serial interaction for high-speed communications between simpler shift register-type devices, such as display drivers, analog-to-digital (A/D) converters, PLL, input/output (I/O) expansion, or other microcontrollers in the system. The TMS370Cx1x family provides the system designer with economical, efficient solution to real-time control applications. The TMS370 family extended development system (XDS) and compact development tool (CDT) solve the challenge of efficiently developing the software and hardware required to design the TMS370Cx1x into an ever-increasing number of complex applications. The application source code can be written in assembly and C language, and the output code can be generated by the linker. The TMS370 family XDS development tool communicates through a standard RS-232-C interface with an existing personal computer. This allows the use of the PC’s editors and software utilities already familiar to the designer. The TMS370 family XDS emphasizes ease-of-use through extensive menus and screen windowing so that a system designer can begin developing software with minimal training. Precise real-time, in-circuit emulation and extensive symbolic debug and analysis tools ensure efficient software and hardware implementation as well as reducing the time-to-market cycle. The TMS370Cx1x family together with the TMS370 family XDS22, CDT370, design kit, starter kit, software tools, the SE370C712 reprogrammable devices, comprehensive product documentation, and customer support provide a complete solution to the needs of the system designer. central processing unit (CPU) The CPU on the TMS370Cx1x device is the high-performance 8-bit TMS370 CPU module. The ’x1x implements an efficient register-to-register architecture that eliminates the conventional accumulator bottleneck. The complete ’x1x instruction map is shown in Table 17 in the TMS370Cx1x instruction set overview section. The ’370Cx1x CPU architecture provides the following components: CPU registers: D A stack pointer that points to the last entry in the memory stack D A status register that monitors the operation of the instructions and contains the global interrupt-enable bits D A program counter (PC) that points to the memory location of the next instruction to be executed XDS and CDT are trademarks of Texas Instruments Incorporated. |
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