12
12-25
Ver.0.10
SERIAL I/O
12.2 Serial I/O Related Registers
(5) PTY (parity error) bit (D5)
This bit is effective in only UART mode. During CSIO mode, this bit is fixed to 0.
[Set condition]
The PTY (parity error) bit is set to 1 when the SIO Transmit/Receive Mode Register's PEN
(parity enable/disable) bit is enabled and the parity (even/odd) of the receive data does not
agree with the value that has been set by the said register's PSEL bit (parity select) bit.
[Clear condition]
The PTY bit is cleared by reading the lower byte from the SIO Receive Buffer Register or
by clearing the SIO Receive Control Register's REN (receive enable) bit. However, if an
overrun error occurs, this bit cannot be cleared by reading the lower byte from the Receive
Buffer Register. In this case, clear the REN (receive enable) bit.
(6) FLM (framing error) bit (D6)
This bit is effective in only UART mode. During CSIO mode, this bit is fixed to 0.
[Set condition]
The FLM (framing error) bit is set to 1 when the number of received bits does not agree with
one that has been selected by the SIO Transmit/Receive Mode Register.
However, if an overrun error occurs, this bit cannot be cleared by reading the lower byte
from the Receive Buffer Register. In this case, clear the REN (receive enable) bit.
[Clear condition]
The FLM bit is cleared by reading the lower byte from the SIO Receive Buffer Register or
by clearing the SIO Receive Control Register's REN (receive enable) bit
(7) ERS (Error sum) bit (D7)
[Set condition]
This flag is set to 1 when any one of overrun, framing, or parity errors is detected at
completion of reception.
[Clear condition]
If an overrun has occurred, this flag is cleared by clearing the REN (receive enable) bit.
Otherwise, this flag is cleared by reading the lower byte from the Receive Buffer Register
or clearing the SIO Receive Control Register's REN (receive enable) bit.
Summary of Contents for M32170F3VFP
Page 42: ...1 1 24 Ver 0 10 OVERVIEW 1 4 Pin Layout This is a blank page ...
Page 56: ...2 2 14 Ver 0 10 This is a blank page ...
Page 88: ...3 3 32 Ver 0 10 ADDRESS SPACE 3 7 Notes on Address Space This is a blank page ...
Page 270: ...9 9 40 Ver 0 10 DMAC 9 4 Precautions about the DMAC This is a blank page ...
Page 614: ...12 12 64 Ver 0 10 This is a blank page SERIAL I O 12 9 Precautions on Using UART Mode ...
Page 756: ...17 17 10 Ver 0 10 RAM BACKUP MODE 17 4 Exiting RAM Backup Mode Wakeup This is a blank page ...
Page 762: ...18 18 6 Ver 0 10 OSCILLATION CIRCUIT 18 2 Clock Generator Circuit This is a blank page ...
Page 831: ...CHAPTER 22 CHAPTER 22 TYPICAL CHARACTERISTICS 22 1 A D Conversion Characteristics ...
Page 833: ...Appendix 1 1 Dimensional Outline Drawing APPENDIX 1 APPENDIX 1 MECHANICAL SPECIFICATIONS ...
Page 841: ...Appendix 3 1 Precautions about Noise APPENDIX 3 APPENDIX 3 PRECAUTIONS ABOUT NOISE ...