Z8F082ASH020SC Datasheet, PDF (102/244 Pages) Zilog, Inc. – Z8 Encore XP-R F08xA Series with eXtended Peripherals

Z8 Encore! XP^® F08xA Seriess
Product Specification
84
UART
Overview
The Universal Asynchronous Receiver/Transmitter (UART) is a full-duplex communica-
tion channel capable of handling asynchronous data transfers. 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
• 16-bit Baud Rate Generator (BRG)
• Selectable MULTIPROCESSOR (9-bit) mode with three configurable interrupt schemes
• Baud Rate Generator timer mode
• Driver Enable output for external bus transceivers
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 9 illustrates the UART architecture.
PS024705-0405
PRELIMINARY
UART