Z8F082A28100KIT ZILOG [Zilog, Inc.], Z8F082A28100KIT Datasheet - Page 113

• Manufacturer Part Number: Z8F082A28100KIT
• Description: Z8 Encore XP-R F08xA Series with eXtended Peripherals
• Manufacturer: ZILOG [Zilog, Inc.]

UART Control Register Definitions
BITS
FIELD
RESET
R/W
ADDR
PS024705-0405
UART Transmit Data Register
W
X
7
(BRG[15:0]) that sets the data transmission rate (baud rate) of the UART. The UART data
rate is calculated using the following equation:
When the UART is disabled, the Baud Rate Generator functions as a basic 16-bit timer
with interrupt on time-out. To configure the Baud Rate Generator as a timer with interrupt
on time-out, complete the following procedure:
1. Disable the UART by clearing the REN and TEN bits in the UART Control 0 register
2. Load the acceptable 16-bit count value into the UART Baud Rate High and Low Byte
3. Enable the Baud Rate Generator timer function and associated interrupt by setting the
When configured as a general purpose timer, the interrupt interval is calculated using the
following equation:
Interrupt Interval (s) = System Clock Period (s) ×BRG[15:0]
The UART control registers support the UART and the associated Infrared Encoder/
Decoders. For more information about the infrared operation, refer to the
Encoder/Decoder
Data bytes written to the UART Transmit Data register (Table 60) are shifted out on the
TXDx
with the read-only UART Receive Data register.
UART Data Rate (bits/s)
to 0.
registers.
BIRQ bit in the UART Control 1 register to 1.
pin. The Write-only UART Transmit Data register shares a Register File address
W
Table 60. UART Transmit Data Register (U0TXD)
X
6
chapter on page 104.
W
X
5
P R E L I M I N A R Y
=
--------------------------------------------------------------------------------------------- -
16
W
X
4
×
System Clock Frequency (Hz)
UART Baud Rate Divisor Value
F40H
TXD
W
X
3
Z8 Encore! XP
W
X
2
Product Specification
]
®
W
X
1
F08xA Seriess
Infrared
W
X
0
UART
95