z8f1601 ZiLOG Semiconductor, z8f1601 Datasheet - Page 98

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

Figure 68. UART Asynchronous Data Format without Parity
Figure 69. UART Asynchronous Data Format with Parity
PS017609-0803
1
0
Idle State
1
0
of Line
Transmitting Data using the Polled Method
Idle State
of Line
Figures 68 and 69 illustrates the asynchronous data format employed by the UART with-
out parity and with parity, respectively.
Follow these steps to transmit data using the polled method of operation:
1. Write to the UART Baud Rate High and Low Byte registers to set the desired baud
2. Enable the UART pin functions by configuring the associated GPIO Port pins for
3. Write to the UART Control 1 register to enable Multiprocessor (9-bit) mode functions,
4. Write to the UART Control 0 register to:
Start
Start
rate.
alternate function operation.
if desired.
–
–
–
Bit0
Set the transmit enable bit ( TEN ) to enable the UART for data transmission
Enable parity, if desired, and select either even or odd parity.
Set or clear the CTSE bit to enable or disable control from the receiver using the
CTS pin.
lsb
Bit0
lsb
Bit1
Bit1
Bit2
Bit2
Bit3
Data Field
Bit3
Data Field
Z8F640x/Z8F480x/Z8F320x/Z8F240x/Z8F160x
Bit4
Bit4
Bit5
Bit5
Bit6
Bit6
msb
Bit7
msb
Bit7
Parity
1
Stop Bit(s)
1
Z8 Encore!
2
Stop Bit(s)
2
UART
®
80