z8f1621 ZiLOG Semiconductor, z8f1621 Datasheet - Page 114

• Manufacturer Part Number: z8f1621
• Description: High Performance 8-bit Microcontrollers
• Manufacturer: ZiLOG Semiconductor

Operation
PS019921-0308
Data Format
CTS
RXD
TXD
DE
System Bus
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.
Figure 13
the UART without parity and with parity, respectively.
Parity Generator
Transmit Data
Transmit Shift
and
Register
Register
Receive Shifter
Parity Checker
Receive Data
Figure 14
Register
Figure 12. UART Block Diagram
on page 101 displays the asynchronous data format employed by
Status Register
Transmitter Control
with address compare
Receiver Control
Control Registers
Z8 Encore! XP
Product Specification
Baud Rate
Generator
®
F64XX Series
UART
100