z8f0822 ZiLOG Semiconductor, z8f0822 Datasheet - Page 113

• Manufacturer Part Number: z8f0822
• Description: High Performance 8-bit Microcontrollers
• Manufacturer: ZiLOG Semiconductor

Table 52. UART Transmit Data Register (U0TXD)
UART Control Register Definitions
PS022517-0508
BITS
FIELD
RESET
R/W
ADDR
UART Transmit Data Register
W
7
X
When the UART is disabled, the BRG functions as a basic 16-bit timer with interrupt on
time-out. Follow the steps below to configure the BRG as a timer with interrupt on time-
out:
1. Disable the UART by clearing the
2. Load the desired 16-bit count value into the UART Baud Rate High and Low Byte
3. Enable the BRG timer function and associated interrupt by setting the BKGCTL bit in
When configured as a general-purpose timer, the interrupt interval is calculated using the
following equation:
The UART Control Registers support the UART and the associated Infrared Encoder/
Decoders. See
red operation.
Data bytes written to the UART Transmit Data Register
TXDx pin. The Write-only UART Transmit Data Register shares a Register File address
with the Read-only UART Receive Data Register.
TXD—Transmit Data
UART transmitter data byte to be shifted out through the TXDx pin.
Interrupt Interval (s) = System Clock Period (s) ×BRG[15:0] ]
to 0.
Registers.
the UART Control 1 Register to 1.
W
X
6
Infrared Encoder/Decoder
W
X
5
W
X
4
REN
F40H
TXD
on page 109 for more information on the infra-
and
W
X
3
TEN
Universal Asynchronous Receiver/Transmitter
bits in the UART Control 0 Register
Z8 Encore! XP
(Table
W
X
2
52) are shifted out on the
Product Specification
W
X
1
®
F0822 Series
W
X
0
100