Z8F0113HJ005EG Datasheet, PDF (124/245 Pages) Zilog, Inc. – High-Performance 8-Bit Microcontrollers

Z8 Encore! XP^® F0823 Series
Product Specification
109
UART Transmit Data Register
Data bytes written to the UART Transmit Data Register (Table 64) are shifted out on the
TXDx pin. The Write-only UART Transmit Data Register shares a Register File address
with the read-only UART Receive Data Register.
Table 64. UART Transmit Data Register (U0TXD)
Bit
7
6
5
4
3
2
1
0
Field
TXD
RESET
X
X
X
X
X
X
X
X
R/W
W
W
W
W
W
W
W
W
Address
F40H
Bit
[7:0]
TXD
Description
Transmit Data
UART transmitter data byte to be shifted out through the TXDx pin.
UART Receive Data Register
Data bytes received through the RXDx pin are stored in the UART Receive Data Register
(Table 65). The read-only UART Receive Data Register shares a Register File address
with the Write-only UART Transmit Data Register.
Table 65. UART Receive Data Register (U0RXD)
Bit
7
6
5
4
3
2
1
0
Field
RXD
RESET
X
X
X
X
X
X
X
X
R/W
R
R
R
R
R
R
R
R
Address
F40H
Bit
[7:0]
RXD
Description
Receive Data
UART receiver data byte from the RXDx pin.
PS024315-1011
PRELIMINARY
UART Control Register Definitions