12
12-46
Ver.0.10
SERIAL I/O
12.6 Transmit Operation in UART Mode
12.6.2 UART Transmit/Receive Data Formats
The transmit/receive data format during UART mode is determined by setting the SIO Transmit/
Receive Mode Register. Shown below is the transmit/receive data format that can be used in UART
mode.
Figure 12.6.1 Example of Transmit/Receive Data Format in UART Mode
Table 12.6.1 Transfer Data in UART Mode
Bit Name
Content
ST (start bit)
Indicates the beginning of data transmission. This is a low signal of a one bit
duration, which is added immediately before the transmit data.
D0-D8 (character bits)
Transmit/receive data transferred via serial I/O. In UART mode, data in 7, 8, or
9 bits can be transmitted/received.
PAR (parity bit)
Added to the transmit/receive characters. When parity is enabled, parity is
automatically set in such a way that the number of 1's in characters including
the parity bit itself is always even or odd as selected by the even/odd parity
select bit.
SP (stop bit)
Indicates the end of data transmission, and is added immediately after
characters (or if parity enabled, immediately after the parity bit). The stop bit can
be chosen to be one bit or two bits long.
ST
D7
D6
D5
D4
D3
D2
D1
D0
PAR
SP
SP
LSB
MSB
ST
Parity bit
Stop bit
Start bit
Data bits (8 bits)
Transmit data
Next
data
Содержание M32170F3VFP
Страница 19: ...CHAPTER 1 CHAPTER 1 OVERVIEW 1 1 Outline of the 32170 1 2 Block Diagram 1 3 Pin Function 1 4 Pin Layout ...
Страница 42: ...1 1 24 Ver 0 10 OVERVIEW 1 4 Pin Layout This is a blank page ...
Страница 56: ...2 2 14 Ver 0 10 This is a blank page ...
Страница 88: ...3 3 32 Ver 0 10 ADDRESS SPACE 3 7 Notes on Address Space This is a blank page ...
Страница 192: ...6 6 58 Ver 0 10 INTERNAL MEMORY 6 9 Precautions to Be Taken When Rewriting Flash Memory This is a blank page ...
Страница 270: ...9 9 40 Ver 0 10 DMAC 9 4 Precautions about the DMAC This is a blank page ...
Страница 498: ...10 10 228 Ver 0 10 MULTIJUNCTION TIMERS 10 9 TOM Output related 16 bit Timer This is a blank page ...
Страница 550: ...11 11 52 Ver 0 10 A D CONVERTERS 11 4 Precautions on Using A D Converters This is a blank page ...
Страница 614: ...12 12 64 Ver 0 10 This is a blank page SERIAL I O 12 9 Precautions on Using UART Mode ...
Страница 710: ...14 14 16 Ver 0 10 REAL TIME DEBUGGER RTD 14 4 Typical Connection with the Host This is a blank page ...
Страница 746: ...16 16 20 Ver 0 10 WAIT CONTROLLER 16 3 Typical Operation of the Wait Controller This is a blank page ...
Страница 756: ...17 17 10 Ver 0 10 RAM BACKUP MODE 17 4 Exiting RAM Backup Mode Wakeup This is a blank page ...
Страница 757: ...CHAPTER 18 CHAPTER 18 OSCILLATION CIRCUIT 18 1 Oscillator Circuit 18 2 Clock Generator Circuit ...
Страница 762: ...18 18 6 Ver 0 10 OSCILLATION CIRCUIT 18 2 Clock Generator Circuit This is a blank page ...
Страница 798: ...19 19 36 Ver 0 10 JTAG 19 6 Precautions about Board Design when Connecting JTAG This is a blank page ...
Страница 830: ...21 21 24 Ver 0 10 PRELIMINARY PRELIMINARY This is a blank page ELECTRICAL CHARACTERISTICS 21 5 AC Characteristics ...
Страница 831: ...CHAPTER 22 CHAPTER 22 TYPICAL CHARACTERISTICS 22 1 A D Conversion Characteristics ...
Страница 833: ...Appendix 1 1 Dimensional Outline Drawing APPENDIX 1 APPENDIX 1 MECHANICAL SPECIFICATIONS ...
Страница 837: ...Appendix 2 1 32170 Instruction Processing Time APPENDIX 2 APPENDIX 2 INSTRUCTION PROCESSING TIME ...
Страница 841: ...Appendix 3 1 Precautions about Noise APPENDIX 3 APPENDIX 3 PRECAUTIONS ABOUT NOISE ...