TMS370 datasheet(5/66 Pages) TI

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TMS370Cx4x

8-BIT MICROCONTROLLER

SPNS016C – NOVEMBER 1992 – REVISED FEBRUARY 1997

POST OFFICE BOX 1443

• HOUSTON, TEXAS 77251–1443

description (continued)

The SE370C742A has a windowed ceramic package to allow reprogramming of the program EPROM memory

during the development/prototyping phase of design. The SE370C742A device allows quick updates to

breadboards and prototype systems while iterating initial designs.

The TMS370Cx4x 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 (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 TMS370Cx4x features advanced register-to-register architecture that allows arithmetic and logical

operations without requiring an accumulator (e.g., ADD R24, R47; add the contents of register 24 to the contents

of register 47 and store the result in register 47). The TMS370Cx4x family is fully instruction-set-compatible,

allowing easy transition between members of the TMS370 8-bit microcontroller family.

The TMS370Cx4x family offers an 8-channel ADC1 with 8-bit accuracy for the 44-pin PLCC packages and also

offers a 4-channel ADC1 for the 40-pin DIP packages. The 33-

µs conversion time at 5-MHz SYSCLK and the

variable sample period, combined with selectable positive reference voltage sources, turn analog signals into

digital data.

The serial communications interface 1 (SCI1) module is a built-in serial interface that can be programmed to

be asynchronous or isosynchronous to give two methods of serial communications. The SCI allows standard

RS-232-C communications with other common data transmission equipment. The CPU takes no part in serial

communications except to write data to be transmitted to a register and to read data received from a register.

The TMS370Cx4x family provides the system designer with very economical, efficient solutions 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

TMS370Cx4x into an ever-increasing number of complex applications. The application source code can be

written in assembly and C languages, and the output code can be generated by the linker. The TMS370 family

XDS communicates through a standard RS-232-C interface with a personal computer, allowing use of the

personal computer editors and software utilities already familiar to the designer. The TMS370 family XDS

emphasizes ease-of-use through 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 TMS370Cx4x family together with the TMS370 family XDS, CDT370, starter kit, software tools, the

SE370C742A reprogrammable devices, comprehensive product documentation, and customer support

provide a complete solution for the needs of the system designer.

XDS and CDT are trademarks of Texas Instruments Incorporated.

TMS370 Datasheet(PDF) 5 Page - Texas Instruments

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