352
CHAPTER 20 UART2, UART3
20.4.2
Serial Mode Register (SMR2/SMR3)
This register selects an operation mode and baud rate clock and specifies whether to
enable output of serial data and clocks to the corresponding pin.
■
Serial Mode Register (SMR2/SMR3)
Figure 20.4-3 Configuration of the Serial Mode Register (SMR2/SMR3)
7
6
5
4
3
2
1
0
Initial value
0 0 0 0 0 0 0 0
B
R/W R/W R/W R/W
W
W
R/W R/W
bit0
SOE
Serial data output enable bit of LIN-UART
0
General purpose I/O port
1
LIN-UART serial data output pin
bit1
SCKE
Serial clock output enable bit of LIN-UART
0
General purpose I/O port or LIN-UART clock input pin
1
Serial clock output pin of LIN-UART
bit2
UPCL
LIN-UART programmable clear (Soft
w
are Reset)
w
rite
read
0
ignored
al
w
ays "0"
1
Reset UART
bit3
REST
Restart dedicated Reload Counter
w
rite
read
0
ignored
al
w
ays "0"
1
Restart Counter
bit4
EXT
External Serial Clock Source enable
0
Use internal Baud Rate Generator (Reload Counter)
1
Use external Serial Clock Source
bit5
OTO
One-to-one external clock Input enable
0
Use ext. Clock
w
ith Baud Rate Generator (Reload C.)
1
Use external Clock as is
bit6
bit7
MD0
MD1
Operation Mode Setting
0
0
Mode 0: Asynchronous normal
0
1
Mode 1: Asynchronous Multiprocessor
1
0
Mode 2: Synchronous
1
1
Mode 3: Asynchronous LIN
R/W
:
Readable and
w
ritable
W
:
Write only
:
Initial value
Address:
bit
SMR3: 003518
H
SMR2: 0035D8
H
Содержание MB90390 Series
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Страница 17: ...xiii APPENDIX D List of Interrupt Vectors 690 INDEX 695 ...
Страница 18: ...xiv ...
Страница 132: ...104 CHAPTER 5 CLOCKS ...
Страница 152: ...124 CHAPTER 6 CLOCK MODULATOR ...
Страница 210: ...182 CHAPTER 11 TIME BASE TIMER ...
Страница 218: ...190 CHAPTER 12 WATCHDOG TIMER ...
Страница 264: ...236 CHAPTER 14 16 BIT RELOAD TIMER WITH EVENT COUNT FUNCTION ...
Страница 274: ...246 CHAPTER 15 WATCH TIMER ...
Страница 306: ...278 CHAPTER 17 DTP EXTERNAL INTERRUPTS ...
Страница 338: ...310 CHAPTER 18 8 10 BIT A D CONVERTER ...
Страница 364: ...336 CHAPTER 19 UART0 UART1 ...
Страница 398: ...370 CHAPTER 20 UART2 UART3 Figure 20 5 2 ORE Set Timing Receive data RDRF ORE ...
Страница 432: ...404 CHAPTER 20 UART2 UART3 ...
Страница 482: ...454 CHAPTER 22 SERIAL I O ...
Страница 560: ...532 CHAPTER 24 STEPPING MOTOR CONTROLLER ...
Страница 582: ...554 CHAPTER 27 ROM MIRRORING MODULE ...
Страница 632: ...604 CHAPTER 29 EXAMPLES OF SERIAL PROGRAMMING CONNECTION ...
Страница 722: ...694 APPENDIX ...
Страница 723: ...695 INDEX The index follows on the next page This is listed in alphabetic order ...
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