TL16C450

ASYNCHRONOUS COMMUNICATIONS ELEMENT

SLLS037C − MARCH 1988 − REVISED JANUARY 2006

2

POST OFFICE BOX 655303

description

The TL16C450 is a CMOS version of an asynchronous communications element (ACE). It typically functions

in a microcomputer system as a serial input/output interface.

The TL16C450 performs serial-to-parallel conversion on data received from a peripheral device or modem and

parallel-to-serial conversion on data received from its CPU. The CPU can read and report on the status of the

ACE at any point in the ACE’s operation. Reported status information includes the type of transfer operation

in progress, the status of the operation, and any error conditions encountered.

The TL16C450 ACE includes a programmable, on-board, baud rate generator. This generator is capable of

× clock for driving the internal

transmitter logic. Provisions are included to use this 16

× clock to drive the receiver logic. Also included in the

ACE is a complete modem control capability and a processor interrupt system that may be software tailored

to the user’s requirements to minimize the computing required to handle the communications link.