
503
CHAPTER 17 UART
●
Initialization
The following shows the set values of each control register using the synchronous mode:
[Mode control register (SMR0/SMR1)]
MD1,MD0:"10
B
"
CS2,CS1,CS0:Specify clock input using the clock selector.
SCKE:1 for dedicated baud rate generator or internal timer
0 for clock output and external clock (clock input)
SOE:1 for transmission; 0 for reception only
[Control register (SCR0/SCR1)]
PEN:"0"
P,SBL,A/D:These bits make no sense.
CL:1 (8-bit data)
REC:0 (the error flag is cleared for initialization.)
RXE,TXE:At least one of the two bits is set to "1".
[Status register (SSR0/SSR1)]
RIE:1 when using interrupts; 0 when using no interrupts.
TIE:1 when using interrupts; 0 when using no interrupts.
●
Starting communication
Write data to the output data register (SODR0/SODR1) to start communication. Temporary data must be
written to SODR0/SODR1 to start communication for reception.
●
Ending communication
The RDRF flag of the status register (SSR0/SSR1) is set to "1" when transmission or reception of a data
frame is complete. During reception, check the overrun error flag bit (SSR0/SSR1) to see if
communication is performing normally.
Summary of Contents for MB90460 Series
Page 1: ...The following document contains information on Cypress products ...
Page 3: ......
Page 5: ......
Page 9: ...iv ...
Page 41: ...22 CHAPTER 1 OVERVIEW ...
Page 45: ...26 CHAPTER 2 NOTES ON HANDLING DEVICES ...
Page 83: ...64 CHAPTER 3 CPU ...
Page 95: ...76 CHAPTER 4 RESET ...
Page 107: ...88 CHAPTER 5 CLOCK ...
Page 131: ...112 CHAPTER 6 LOW POWER CONSUMPTION MODE ...
Page 175: ...156 CHAPTER 7 INTERRUPT ...
Page 181: ...162 CHAPTER 8 MODE SETTING ...
Page 223: ...204 CHAPTER 9 I O PORT ...
Page 237: ...218 CHAPTER 10 TIME BASE TIMER ...
Page 247: ...228 CHAPTER 11 WATCHDOG TIMER ...
Page 275: ...256 CHAPTER 12 16 BIT RELOAD TIMER ...
Page 373: ...354 CHAPTER 14 MULTI FUNCTIONAL TIMER ...
Page 485: ...466 CHAPTER 16 PWC Timer ...
Page 531: ...512 CHAPTER 17 UART ...
Page 559: ...540 CHAPTER 19 DELAYED INTERRUPT GENERATOR MODULE ...
Page 589: ...570 CHAPTER 20 8 10 BIT A D CONVERTER ...
Page 601: ...582 CHAPTER 21 ROM CORRECTION FUNCTION ...
Page 633: ...614 CHAPTER 23 512K 1024K BIT FLASH MEMORY ...
Page 645: ...626 CHAPTER 24 EXAMPLE OF F2 MC 16LX MB90F462 F462A F463A CONNECTION FOR SERIAL WRITING ...
Page 715: ...696 APPENDIX ...
Page 716: ...697 INDEX INDEX The index follows on the next page This is listed in alphabetic order ...
Page 739: ......