430
CHAPTER 15 UART1
15.1
Overview of UART1
The UART1 is a general-purpose serial-data communication interface for synchronous
or asynchronous communication with external devices.
• Incorporates a bidirectional communication function (clock synchronous and
asynchronous modes)
• Incorporates a master/slave type communication function (in multiprocessor mode:
only master)
• Can generate an interrupt request at transmit completion and receive completion, and
at detection of a receive error.
• Supports expansion intelligent I/O service (EI
2
OS)
■
Functions of UART1
●
Functions of UART1
The UART1 is a general-purpose serial-data communication interface, which transmits/receives serial data
with external devices. And UART1 has functions listed in .
Table 15.1-1 Function of UART1
Function
Data buffer
Full-duplicate double-buffer
Transfer mode
• Synchronous to clock (without start bit/stop bit and parity bit)
• Asynchronous (start-stop synchronization to clock)
Baud rate
• Dedicated baud-rate generator (The baud rate can be selected from among
eight types.)
• Any baud rate can be set by external clock.
• A clock supplied from the internal clock (16-bit reload timer 0) can be
used.
Data length
• 7 bits (for asynchronous normal mode only)]
• 8 bits
Signal type
NRZ (Non Return to Zero) type]
Detection of receive error
• Framing error
• Overrun error
• Parity error (not supported for operation mode 1)
Interrupt request
• Detection of receive error
• Transmission interrupt (Transmission)
• Both the transmission and reception support EI
2
OS.
Master/slave type communication
function (multiprocessor mode)
This function enables communications between 1 (only use master) and n
(slave) (This function is used only as the master side)
Note:
At the clock synchronous transfer, the UART only transfers data, not affixing the start and
stop bits.
Содержание F2MC-16LX Series
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Страница 686: ...668 APPENDIX Table A 9 13 ea Instruction 8 first byte 77H ...
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Страница 688: ...670 APPENDIX Table A 9 15 MOVEA RWi ea Instruction first byte 79H ...
Страница 689: ...671 APPENDIX A Instructions Table A 9 16 MOV Ri ea Instruction first byte 7AH ...
Страница 690: ...672 APPENDIX Table A 9 17 MOVW RWi ea Instruction first byte 7BH ...
Страница 691: ...673 APPENDIX A Instructions Table A 9 18 MOV ea Ri Instruction first byte 7CH ...
Страница 692: ...674 APPENDIX Table A 9 19 MOVW ea Rwi Instruction first byte 7DH ...
Страница 693: ...675 APPENDIX A Instructions Table A 9 20 XCH Ri ea Instruction first byte 7EH ...
Страница 694: ...676 APPENDIX Table A 9 21 XCHW RWi ea Instruction first byte 7FH ...
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