Z8F1601 Datasheet, PDF (105/246 Pages) Zilog, Inc. – Z8 Encore Microcontrollers with Flash Memory and 10-Bit A/D Converter

Z8F640x/Z8F480x/Z8F320x/Z8F240x/Z8F160x
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87
UARTx Receive Data Register
Data bytes received through the RXDx pin are stored in the UARTx Receive Data register
(Table 51). The Read-only UARTx Receive Data register shares a Register File address
with the Write-only UARTx Transmit Data register.
Table 51. UARTx Receive Data Register (UxRXD)
BITS
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
ADDR
F40H and F48H
RXD—Receive Data
UART receiver data byte from the RXDx pin
UARTx Status 0 and Status 1 Registers
The UARTx Status 0 and Status 1 registers (Table 52 and 53) identify the current UART
operating configuration and status.
Table 52. UARTx Status 0 Register (UxSTAT0)
BITS
7
6
5
4
3
2
1
0
FIELD ^RDA
PE
OE
FE
BRKD TDRE
TXE
CTS
RESET
0
0
0
0
0
1
1
X
R/W
R
R
R
R
R
R
R
R
ADDR
F41H and F49H
RDA—Receive Data Available
This bit indicates that the UART Receive Data register has received data. Reading the
UART Receive Data register clears this bit.
0 = The UART Receive Data register is empty.
1 = There is a byte in the UART Receive Data register.
PE—Parity Error
This bit indicates that a parity error has occurred. Reading the UART Receive Data regis-
ter clears this bit.
PS017610-0404
UART