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SCC2692

Philips
Part Number SCC2692
Manufacturer Philips
Description Dual asynchronous receiver/transmitter DUART
Published May 25, 2005
Detailed Description INTEGRATED CIRCUITS SCC2692 Dual asynchronous receiver/transmitter (DUART) Product specification Supersedes data of 199...
Datasheet PDF File SCC2692 PDF File

SCC2692
SCC2692


Overview
INTEGRATED CIRCUITS SCC2692 Dual asynchronous receiver/transmitter (DUART) Product specification Supersedes data of 1998 Feb 19 IC19 Data Handbook 1998 Sep 04 Philips Semiconductors Philips Semiconductors Product specification Dual asynchronous receiver/transmitter (DUART) SCC2692 DESCRIPTION The Philips Semiconductors SCC2692 Dual Universal Asynchronous Receiver/Transmitter (DUART) which is compatible with the SCN2681.
It is a single-chip CMOS-LSI communications device that provides two full-duplex asynchronous receiver/transmitter channels in a single package.
It interfaces directly with microprocessors and may be used in a polled or interrupt driven system.
The operating mode and data format of each channel can be programmed independently.
Additionally, each receiver and transmitter can select its operating speed as one of eighteen fixed baud rates, a 16X clock derived from a programmable counter/timer, or an external 1X or 16X clock.
The baud rate generator and counter/timer can operate directly from a crystal or from external clock inputs.
The ability to independently program the operating speed of the receiver and transmitter make the DUART particularly attractive for dual-speed channel applications such as clustered terminal systems.
Each receiver is quadruply buffered to minimize the potential of receiver over-run or to reduce interrupt overhead in interrupt driven systems.
In addition, a flow control capability is provided to disable a remote DUART transmitter when the receiver buffer is full.
Also provided on the SCC2692 are a multipurpose 7-bit input port and a multipurpose 8-bit output port.
These can be used as general purpose I/O ports or can be assigned specific functions (such as clock inputs or status/interrupt outputs) under program control.
– Non-standard user-defined rate derived from programmable counter/timer – External 1X or 16X clock • Parity, framing, and overrun error detection • False start bit detection • Line break detection and...


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