Z8F1680SH020SG Datasheet, PDF (169/412 Pages) Zilog, Inc. – High-Performance 8-Bit Microcontrollers

Z8 Encore! XP^® F1680 Series
Product Specification
144
Chapter 12. LIN-UART
The Local Interconnect Network Universal Asynchronous Receiver/Transmitter (LIN-
UART) is a full-duplex communication channel capable of handling asynchronous data
transfers in standard UART applications and providing LIN protocol support. The LIN-
UART is a superset of the standard Z8 Encore!^® UART, providing all its standard features,
LIN protocol support and a digital noise filter.
LIN-UART includes the following features:
• 8-bit asynchronous data transfer
• Selectable even- and odd-parity generation and checking
• Option of 1 or 2 stop bits
• Selectable MULTIPROCESSOR (9-bit) Mode with three configurable interrupt
schemes
• Separate transmit and receive interrupts
• Framing, parity, overrun and break detection
• 16-bit baud rate generator (BRG) which can function as a general purpose timer with
interrupt
• Driver Enable output for external bus transceivers
• LIN protocol support for both MASTER and SLAVE modes:
– Break generation and detection
– Selectable Slave Autobaud
– Check Tx versus Rx data when sending
• Configuring digital-noise filter on Receive Data line
12.1. LIN-UART Architecture
The LIN-UART consists of three primary functional blocks: transmitter, receiver and
baud-rate generator. The LIN-UART’s transmitter and receiver function independently but
use the same baud rate and data format. The basic UART operation is enhanced by the
Noise Filter and IrDA blocks. Figure 19 displays the LIN-UART architecture.
PS025015-1212
PRELIMINARY
LIN-UART