Z8F1601 Datasheet, PDF (96/246 Pages) Zilog, Inc. – Z8 Encore Microcontrollers with Flash Memory and 10-Bit A/D Converter

Z8F640x/Z8F480x/Z8F320x/Z8F240x/Z8F160x
Z8 Encore!^®
78
UART
Overview
The Universal Asynchronous Receiver/Transmitter (UART) is a full-duplex communica-
tion channel capable of handling asynchronous data transfers. The Z8F640x family device
contains two fully independent UARTs. The UART uses a single 8-bit data mode with
selectable parity. Features of the UART include:
• 8-bit asynchronous data transfer
• Selectable even- and odd-parity generation and checking
• Option of one or two Stop bits
• Separate transmit and receive interrupts
• Framing, parity, overrun and break detection
• Separate transmit and receive enables
• Selectable 9-bit multiprocessor (9-bit) mode
• 16-bit Baud Rate Generator (BRG)
Architecture
The UART consists of three primary functional blocks: transmitter, receiver, and baud rate
generator. The UART’s transmitter and receiver function independently, but employ the
same baud rate and data format. Figure 67 illustrates the UART architecture.
PS017610-0404
UART