Fujitsu FR60 Hardware Manual page 427

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■ Example of Setting Baud Rates and U-TIMER Reload Values
Table 14.1-3 gives examples of setting values for baud rates and U-TIMER reload values in asynchronous
(start-stop synchronization) mode. Table 14.1-4 gives examples of setting values for baud rates and U-
TIMER reload values in CLK synchronous mode.
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 for the U-TIMER. A dash (-) in the tables means that the baud rate cannot
be used because the error exceeds plus minus 1%.
The U-Timer reload value is displayed as a decimal value.
Table 14.1-3 Example of Setting Values for Baud Rates and U-TIMER Reload Values in Asynchronous
(Start-stop Synchronization) Mode
Baud rate
ms
(bps)
1200
833.33
2400
416.67
4800
208.33
9600
104.17
19200
52.08
38400
26.04
57600
17.36
115200
8.681
10400
96.15
31250
32.00
62500
16.00
φ = Peripheral machine clock frequency
Note: The error range is -1% to +1%.
Table 14.1-4 Example of Setting Values for Baud Rates and U-TIMER Reload Values in CLK Synchronous
Mode
Baud rate (bps)
250k
500k
1M
φ = Peripheral machine clock frequency
*: The error range is -1% to +1%.
φ=25MHz
1301(UCC1=0)
650(UCC1=0)
324(UCC1=1)
161(UCC1=1)
80(UCC1=1)
39(UCC1=1)
26(UCC1=0)
12(UCC1=1)
149(UCC1=0)
49(UCC1=0)
24(UCC1=0)
φ=25MHz
ms
4.00
49(UCC1=0)
2.00
24(UCC1=0))
1.00
11(UCC1=1)
φ=20MHz
φ=12.5MHz
1040(UCC1=1)
650(UCC1=0)
520(UCC1=0)
324(UCC1=1)
259(UCC1=1)
162(UCC1=1)
129(UCC1=0)
80(UCC1=1)
64(UCC1=0)
39(UCC1=1)
31(UCC1=1)
19(UCC1=1)
20(UCC1=1)
12(UCC1=1)
-
119(UCC1=0)
74(UCC1=0)
39(UCC1=0)
24(UCC1=0)
19(UCC1=0)
11(UCC1=1)
φ=20MHz
φ=12.5MHz
39(UCC1=0)
24(UCC1=0)
19(UCC1=0)
11(UCC1=1)
9(UCC1=0)
5* (UCC1=0)
φ=10MHz
520(UCC1=0)
259(UCC1=1)
129(UCC1=0)
64(UCC1=0)
31(UCC1=1)
-
-
-
-
59(UCC1=0)
19(UCC1=0)
9(UCC1=0)
φ=10MHz
19(UCC1=0))
9(UCC1=0)
4(UCC1=0)
409

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