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ZUSBOPTSC01ZACG 数据表(PDF) 118 Page - Zilog, Inc.

部件名 ZUSBOPTSC01ZACG
功能描述  High-Performance 8-Bit Microcontrollers
PDF  282 Pages
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制造商  ZILOG [Zilog, Inc.]
网页  http://www.zilog.com
标志 ZILOG - Zilog, Inc.

ZUSBOPTSC01ZACG 数据表(HTML) 118 Page - Zilog, Inc.

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PS022827-1212
P R E L I M I N A R Y
Operation
Z8 Encore! XP® F082A Series
Product Specification
101
Transmitting Data using the Polled Method
Observe the following 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 required baud
rate.
2. Enable the UART pin functions by configuring the associated GPIO port pins for
alternate function operation.
3. Write to the UART Control 1 Register, if MULTIPROCESSOR Mode is appropriate,
to enable MULTIPROCESSOR (9-bit) Mode functions.
4. Set the Multiprocessor Mode Select (MPEN) bit to enable MULTIPROCESSOR
Mode.
5. Write to the UART Control 0 Register to:
–
Set the transmit enable bit (TEN) to enable the UART for data transmission
–
Set the parity enable bit (PEN), if parity is appropriate and MULTIPROCESSOR
Mode is not enabled and select either even or odd parity (PSEL)
Figure 11. UART Asynchronous Data Format without Parity
Figure 12. UART Asynchronous Data Format with Parity
Start
Bit0
Bit1
Bit2
Bit3
Bit4
Bit5
Bit6
Bit7
Data Field
lsb
msb
Idle State
of Line
Stop Bit(s)
1
2
1
0
Start
Bit0
Bit1
Bit2
Bit3
Bit4
Bit5
Bit6
Bit7
Parity
Data Field
lsb
msb
Idle State
of Line
Stop Bit(s)
1
2
1
0



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