Z8F6421PM020SC Datasheet, PDF (51/299 Pages) Zilog, Inc. – High Performance 8-Bit Microcontrollers Z8 Encore-R 64K Series

Z8 Encore!^® 64K Series
Z8 Encore!
31
UART1 Status 0
U1STAT0 (F49H - Read Only)
D7 D6 D5 D4 D3 D2 D1 D0
CTS signal
Returns the level of the CTS signal
Transmitter Empty
0 = Data is currently transmitting
1 = Transmission is complete
Transmitter Data Register Empty
0 = Transmit Data Register is full
1 = Transmit Data register is empty
Break Detect
0 = No break occurred
1 = A break occurred
Framing Error
0 = No framing error occurred
1 = A framing occurred
Overrun Error
0 = No overrun error occurred
1 = An overrun error occurred
Parity Error
0 = No parity error occurred
1 = A parity error occurred
Receive Data Available
0 = Receive Data Register is empty
1 = A byte is available in the Receive
Data Register
UART1 Control 0
U1CTL0 (F4AH - Read/Write)
D7 D6 D5 D4 D3 D2 D1 D0
Loop Back Enable
0 = Normal operation
1 = Transmit data is looped back to
the receiver
Stop Bit Select
0 = Transmitter sends 1 Stop bit
1 = Transmitter sends 2 Stop bits
Send Break
0 = No break is sent
1 = Output of the transmitter is zero
Parity Select
0 = Even parity
1 = Odd parity
Parity Enable
0 = Parity is disabled
1 = Parity is enabled
CTS Enable
0 = CTS signal has no effect on the
transmitter
1 = UART recognizes CTS signal as a
transmit enable control signal
Receive Enable
0 = Receiver disabled
1 = Receiver enabled
Transmit Enable
0 = Transmitter disabled
1 = Transmitter enabled
PS019915-1005
Control Register Summary