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13.5
Example of Setting Baud Rates and U-TIMER Reload
Values
This section provides an example of setting baud rates and U-TIMER reload values.
A frequency in the tables represents a peripheral machine clock frequency. UCC1 is a value to be set in the
UCC1 bit of the UTIMC register of the U-TIMER.
"–" in the tables indicates the setting value cannot be used due to the error exceeding ±1%.
Table 13.5-1 Setting Values in Asynchronous (Start-Stop Synchronization) Mode
Baud Rate
ms
1200
833.33
2400
416.67
4800
208.33
9600
104.17
19200
52.08
38400
26.04
57600
17.36
10400
96.15
31250
32.00
62500
16.00
Table 13.5-2 Setting Values in CLK Synchronous Mode
Baud Rate
ms
250K
4.00
500K
2.00
1M
1.00
*: Having error exceeding ±1%
33 MHz
20 MHz
858 (UCC1=0)
520 (UCC1=0)
428 (UCC1=1)
259 (UCC1=1)
214 (UCC1=0)
129 (UCC1=0)
106 (UCC1=1)
64 (UCC1=0)
52 (UCC1=1)
31 (UCC1=1)
26 (UCC1=0)
17 (UCC1=0)
98 (UCC1=0)
59 (UCC1=0)
32 (UCC1=0)
19 (UCC1=0)
15 (UCC1=1)
9 (UCC1=0)
33 MHz
20 MHz
65 (UCC1=0)
39 (UCC1=0)
32 (UCC1=0)
19 (UCC1=0)
15 (UCC1=1)
9 (UCC1=0)
16.5 MHz
428 (UCC1=1)
214 (UCC1=0)
106 (UCC1=0)
52 (UCC1=1)
26 (UCC1=0)
—
12 (UCC1=1)
—
8 (UCC1=0)
48 (UCC1=1)
15 (UCC1=1)
—
16.5 MHz
32 (UCC1=0)
15 (UCC1=1)
7 (UCC1=0)
CHAPTER 13 UART
10 MHz
259 (UCC1=1)
129 (UCC1=0)
64 (UCC1=0)
31 (UCC1=1)
—
—
—
29 (UCC1=0)
9 (UCC1=0)
4 (UCC1=0)
10 MHz
19 (UCC1=0)
9 (UCC1=0)
*
4 (UCC1=0)
321
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