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83C196EA Microcontroller Product Brief The 83C196EA (datasheet .pdf 744k Bytes) is the first member in a new family of microcontrollers targeted at powertrain control in automobiles. It operates at 32 MHz and is highly integrated with a large number of peripherals and 4K of RAM. The 83C196EA's demultiplexed address/data bus with 3 chip select outputs make it easier to design low cost memory solutions. A new Serial Debug Unit (SDU) featured on the 83C196EA allows the contents of the code RAM to be read and written without CPU overhead via a high-speed dedicated serial link. A single hard-ware breakpoint may also be set via the SDU.
For high speed event capture and output compare, the 83C196EA has 17 flexible Event Processor Array
(EPA) channels and 8 output only modules. These output only modules are new to the C196 Family and
have the ability to capture a timer when the compare occurs. There are four independent timer/counters on
the 83C196EA. To assist with inter-processor communications the 83C196EA has two UARTs and two half-duplex synchronous serial ports. Each UART has its own baud rate generator for flexibility. The synchronous serial port is enhanced from previous implementations in that the user has full control over the clock phase and polarity. Support for multi-master systems has been added to the synchronous serial ports. Eight pulse width modulator units are also on the 83C196EA. Each unit has eight-bit resolution and is capable of frequencies ranging from 244 Hz to 62.5 KHz with a 32 MHz clock.
The 83C196EA can perform stack limit checking in hardware to assist in code development and help
insure system integrity.
Software:
Hardware:
Intel Corporation assumes no responsibility for the use of any circuitry other than circuitry embodied in an
Intel product. No other circuit patent licenses are implied. Information contained herein supercedes
previously published specifications on these devices from Intel. *Other brands and names are the property
of their respective owners. (C)Intel Corporation 1995
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