Fujitsu FR81S User Manual
CHAPTER 40: MULTI-FUNCTION SERIAL INTERFACE
6. Operation of CSIO
FUJITSU SEMICONDUCTOR LIMITED
CHAPTER : MULTI-FUNCTION SERIAL INTERFACE
FUJITSU SEMICONDUCTOR CONFIDENTIAL
239
Notes:
⋅
Set the reload value to "0" to stop the reload counter.
⋅
If the reload value is an even number, the "H" and "L" widths of the serial clock depend on the SCINV
bit setting as follows: If it is an odd number, the "H" and "L" widths of the serial clock are equal.
If SCINV="0", the "H" width of the serial clock is longer by one cycle of the bus clock.
If SCINV="1", the "L" width of the serial clock is longer by one cycle of the bus clock.
⋅
Set the reload value to 3 or higher.
Reload values and Baud Rate for Bus Clock Frequencies
Table 6-7 Reload values and Baud Rate for Bus Clock Frequencies
Baud
Rate
(bps)
8MHz
10MHz
16MHz
20MHz
24MHz
32MHz
Value ERR Value ERR Value ERR Value ERR Value ERR Value ERR
8M
-
-
-
-
-
-
-
-
-
-
3
0
6M
-
-
-
-
-
-
-
-
3
0
-
-
5M
-
-
-
-
-
-
3
0
-
-
-
-
4M
-
-
-
-
3
0
4
0
5
0
7
0
2.5M
-
-
3
0
-
-
-
-
-
-
-
-
2M
3
0
4
0
7
0
9
0
11
0
15
0
1M
7
0
9
0
15
0
19
0
23
0
31
0
500000
15
0
19
0
31
0
39
0
47
0
63
0
460800
-
-
-
-
-
-
-
-
51
-0.16
-
-
250000
31
0
39
0
63
0
79
0
95
0
127
0
230400
-
-
-
-
-
-
-
-
103
-0.16
-
-
153600
51
-0.16
64
-0.16
103
-0.16
129
-0.16
155
-0.16
207
-0.16
125000
63
0
79
0
127
0
159
0
191
0
255
0
115200
68
-0.64
87
0.22
138
0.08
173
0.22
207
-0.16
277
0.08
76800
103
-0.16
129
-0.16
207
-0.16
259
-0.16
311
-0.16
416
0.08
57600
138
0.08
173
0.22
277
0.08
346
-0.16
416
0.08
555
0.08
38400
207
-0.16
259
-0.16
416
0.08
520
0.03
624
0
832
-0.04
28800
277
0.08
346 <0.01 554
-0.01
693
-0.06
832
-0.03 1110 -0.01
19200
416
0.08
520
0.03
832
-0.03 1041 0.03 1249
0
1666 0.02
10417
767 <0.01 959 <0.01 1535 <0.01 1919 <0.01 2303 <0.01 3071 <0.01
9600
832
0.04 1041 0.03 1666 0.02 2083 0.03 2499
0
3332 -0.01
7200
1110 <0.01 1388 <0.01 2221 <0.01 2777 <0.01 3332 <0.01 4443 -0.01
4800
1666 0.02 2082 -0.02 3332 <0.01 4166 <0.01 4999
0
6666 <0.01
2400
3332 <0.01 4166 <0.01 6666 <0.01 8332 <0.01 9999
0
13332 <-0.01
1200
6666 <0.01 8334 0.02 13332 <0.01 16666 <0.01 19999
0
26666 <0.01
600
13332 <0.01 16666 <0.01 26666 <0.01
-
-
-
-
-
-
300
26666 26666 <0.01
-
-
-
-
-
-
-
-
-
⋅
Value: Setup values in the BGR register
⋅
ERR: Baud Rate Error (%)
MB91520 Series
MN705-00010-1v0-E
1552