Z8F640x/Z8F480x/Z8F320x/Z8F240x/Z8F160x
Z8 Encore!®
79
Parity Checker
Receive Shifter
Receiver Control
RXD
Receive Data
Register
Control Register
System Bus
Transmit Data
Register
Status Register
Baud Rate
Generator
Transmit Shift
Register
TXD
CTS
Transmitter Control
Parity Generator
Figure 67. UART Block Diagram
Operation
Data Format
The UART always transmits and receives data in an 8-bit data format, least-significant bit
first. An even or odd parity bit can be optionally added to the data stream. Each character
begins with an active Low Start bit and ends with either 1 or 2 active High Stop bits.
PS017610-0404
UART