376
CHAPTER 20 UART2, UART3
■
Suggested Division Ratios for Different Machine Speeds and Baud Rates
The following settings are suggested for different MCU clock speeds and baud rates:
Notes:
•
Deviations (dev.) are given in %.
•
Maximum Synchronous Baud Rate: MCU-Clock div. by 5.
Table 20.6-1 Suggested Baud Rates and Reload Values at Different Machine Speeds
Baud
rate
(bps)
8 MHz
10 MHz
16 MHz
20 MHz
24 MHz
value
dev.
value
dev.
value
dev.
value
dev.
value
dev.
4M
-
-
-
-
-
-
4
0
5
0
2M
-
-
4
0
7
0
9
0
11
0
1M
7
0
9
0
15
0
19
0
23
0
500000
15
0
19
0
31
0
39
0
47
0
460800
-
-
-
-
-
-
-
-
51
-0.16
250000
31
0
39
0
63
0
79
0
95
0
230400
-
-
-
-
-
-
-
-
103
-0.16
153600
51
-0.16
64
-0.16
103
-0.16
129
-0.16
155
-0.16
125000
63
0
79
0
127
0
159
0
191
0
115200
68
-0.64
86
0.22
138
0.08
173
0.22
207
-0.16
76800
103
-0.16
129
-0.16
207
-0.16
259
-0.16
311
-0.16
57600
138
0.08
173
0.22
277
0.08
346
-0.06
416
0.08
38400
207
-0.16
259
-0.16
416
0.08
520
0.03
624
0
28800
277
0.08
346
<0.01
554
-0.01
693
-0.06
832
-0.03
19200
416
0.08
520
0.03
832
-0.03
1041
0.03
1249
0
10417
767
<0.01
959
<0.01
1535
<0.01
1919
<0.01
2303
<0.01
9600
832
0.04
1041
0.03
1666
0.02
2083
0.03
2499
0
7200
1110
<0.01
1388
<0.01
2221
<0.01
2777
<0.01
3332
<0.01
4800
1666
0.02
2082
-0.02
3332
<0.01
4166
<0.01
4999
0
2400
3332
<0.01
4166
<0.01
6666
<0.01
8332
<0.01
9999
0
1200
6666
<0.01
8334
0.02
13332
<0.01
16666
<0.01
19999
0
600
13332
<0.01
16666
<0.01
26666
<0.01
-
-
-
-
300
26666
<0.01
-
-
-
-
-
-
-
-
Содержание MB90390 Series
Страница 2: ......
Страница 4: ......
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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