12
SERIAL INTERFACE
12-25
32192/32195/32196 Group Hardware Manual
Rev.1.10 REJ09B0123-0110 Apr.06.07
Items
Baud rate
[bps]
Clock divider
divide value
[divided-by n]
BRG
set value
Actual baud rate
[bps]
Clock divider
divide value
[divided-by n]
BRG
set value
Actual baud rate
[bps]
250
256
124
250.00
256
155
250.40
500
256
62
496.03
256
77
500.80
1000
32
249
1000.00
256
38
1001.60
2500
32
99
2500.00
32
124
2500.00
5000
32
49
5000.00
8
249
5000.00
10000
32
24
10000.00
8
124
10000.00
25000
32
9
25000.00
8
49
25000.00
50000
32
4
50000.00
1
199
50000.00
100000
8
9
100000.00
1
99
100000.00
250000
1
31
250000.00
1
39
250000.00
500000
1
15
500000.00
1
19
500000.00
1000000
1
7
1000000.00
1
9
1000000.00
2500000
-
1
3
2500000.00
5000000
1
4000000.00
1
5000000.00
Items
Baud rate
[bps]
Clock divider
divide value
[divided-by n]
BRG
set value
Actual baud rate
[bps]
Clock divider
divide value
[divided-by n]
BRG
set value
Actual baud rate
[bps]
250
256
249
250.00
-
500
256
124
500.00
256
155
500.80
1000
256
62
992.06
256
77
1001.60
2500
32
199
2500.00
32
249
2500.00
5000
32
99
5000.00
32
124
5000.00
10000
32
49
10000.00
8
249
10000.00
25000
32
19
25000.00
8
99
25000.00
50000
32
9
50000.00
8
49
50000.00
100000
8
19
100000.00
1
199
100000.00
250000
1
63
250000.00
1
79
250000.00
500000
1
31
500000.00
1
39
500000.00
1000000
1
15
1000000.00
1
19
1000000.00
2500000
-
1
7
2500000.00
5000000
-
1
3
5000000.00
When clock divider count source = 16MHz
When clock divider count source = 20MHz
When clock divider count source = 40MHz
When clock divider count source = 32MHz
Table 12.2.1 Example Settings of the SIO Baud Rate Register (CSIO Mode) (1/2)
Notes: This does not mean that the communication at the above baud rates is guaranteed. Careful consideration and
inspection under your environment are required before use.
Select clock divider count source in SELCLK bit of SIOn special mode register (SnSMOD).
Select divide-by value of clock divider in the CDIV bit of SIOn transmit control register (SnTCNT).
Set BRG set value in the SIOn baud rate register (SnBAUR).
Table 12.2.1 Example Settings of the SIO Baud Rate Register (CSIO Mode) (2/2)
Notes: This does not mean that the communication at the above baud rates is guaranteed. Careful consideration and
inspection under your environment are required before use.
Select clock divider count source in SELCLK bit of SIOn special mode register (SnSMOD).
Select divide-by value of clock divider in the CDIV bit of SIOn transmit control register (SnTCNT).
Set BRG set value in the SIOn baud rate register (SnBAUR).
12.2 Serial Interface Related Registers