General Description

The a6402 MegaCore function implements a universal asynchronous receiver/transmitter (UART), which provides an interface between a microprocessor and a serial communications channel. See Figure 1.

Features

■ a6402 MegaCore function implementing a universal asynchronous

receiver/transmitter (UART)

■ Optimized for FLEX® and MAX® architectures

■ Uses approximately 162 FLEX logic elements (LEs)

■ Programmable word length, stop bits, and parity

■ Full duplex operation

■ Includes status flags for parity, framing, and overrun errors

■ Functionally based on the Harris HD-6402 device, except as noted in

the “Variations & Clarifications” section on page 63