z8f1601 ZiLOG Semiconductor, z8f1601 Datasheet - Page 105

• Manufacturer Part Number: z8f1601
• Description: Z8 Encore!? Microcontroller With Flash Memory And 10-bit A/d Converter
• Manufacturer: ZiLOG Semiconductor

Table 51. UARTx Receive Data Register (UxRXD)
Table 52. UARTx Status 0 Register (UxSTAT0)
PS017609-0803
RESET
RESET
FIELD
FIELD
ADDR
ADDR
BITS
BITS
R/W
R/W
UARTx Receive Data Register
UARTx Status 0 and Status 1 Registers
RDA
X
R
7
R
7
0
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.
RXD—Receive Data
UART receiver data byte from the RXDx pin
The UARTx Status 0 and Status 1 registers (Table 52 and 53) identify the current UART
operating configuration and status.
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.
PE
X
R
R
6
6
0
OE
X
R
R
5
5
0
F40H and F48H
FE
F41H and F49H
X
R
R
4
4
0
Z8F640x/Z8F480x/Z8F320x/Z8F240x/Z8F160x
RXD
BRKD
R
3
0
X
R
3
TDRE
R
2
1
X
R
2
TXE
R
1
1
X
R
1
Z8 Encore!
CTS
X
R
X
R
0
0
UART
®
87