TMS370CX6X Datasheet, PDF (6/73 Pages) Texas Instruments – 8-BIT MICROCONTROLLER

TMS370Cx6x
8-BIT MICROCONTROLLER
SPNS033C – SEPTEMBER 1995 – REVISED FEBRUARY 1997
description (continued)
The TMS370Cx6x family provides two low-power modes (STANDBY and HALT) for applications where
low-power consumption is critical. Both modes stop all central processing unit (CPU) activity (i.e., 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 TMS370Cx6x 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 TMS370Cx6x family is fully instruction-set
compatible, allowing easy transition between members of the TMS370 8-bit microcontroller family.
The SPI and the two operational modes of the SCI1 allow three methods of serial communications. The SCI1
allows standard RS-232-C communications interface between other common data transmission equipment,
while the SPI gives high-speed communications between simpler shift-register type devices, such as display
drivers, ADC1, phase-locked loop (PLL), I/O expansion, or other microcontrollers in the system.
For large memory applications, the TMS370Cx6x family provides an external bus with non-multiplexed address
and data. Precoded memory chip-select outputs can be enabled, which allows minimum-chip-count system
implementations. Wait-state support facilitates performance matching among the CPU, external memory, and
the peripherals. All pins associated with memory expansion interface are individually software configurable for
general purpose digital input/output (I / O) pins when operating in the microcomputer mode.
The TMS370Cx6x family provides the system designer with an economical, efficient solution to real-time control
applications. The TMS370 family compact development tool (CDT™) solves the challenge of efficiently
developing the software and hardware required to design the TMS370Cx6x 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 CDT development tool can communicate through a
standard RS-232-C interface with an existing personal computer. This allows the use of the personal computer
editors and software utilities already familiar to the designer. The TMS370 family CDT emphasizes extensive
use of menus and screen windowing so that a system designer with minimal training can begin developing
software. Precise real-time in-circuit emulation and extensive symbolic debug and analysis tools ensure
efficient software and hardware implementation as well as reduced time-to-market cycle.
The TMS370Cx6x family together with the TMS370 family CDT370, starter kit, software tools, the SE370C76x
reprogrammable devices, comprehensive product documentation, and customer support provide a complete
solution to the needs of the system designer.
CDT is a trademark of Texas Instruments Incorporated.
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