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Table 7.4.4 Setting examples of transfer rate (2)
Transfer
Clock source for peripheral devices select bit = "1"
rate (bps)
BRGi count
source
f
150
64
f
300
64
f
600
16
f
1200
16
2400
f
16
f
4800
2
f
9600
2
f
19200
2
31250
Clock source for peripheral devices select bit : bit 2 at address 5F
Table 7.4.5 Setting examples of transfer rate (3)
Transfer
BRGi count
rate (bps)
source
f
150
128
f
300
32
600
f
32
f
1200
32
f
2400
4
f
4800
4
9600
f
4
f
19200
4
31250
Clock source for peripheral devices select bit : bit 2 at address 5F
7.4 Clock asynchronous serial I/O (UART) mode
BRGi setting
Actual time
value : n
159 (9F
)
16
79 (4F
)
16
159 (9F
)
16
79 (4F
)
16
39 (27
)
16
159 (9F
)
16
79 (4F
)
16
39 (27
)
19200.00
16
Clock source for peripheral devices select bit = "0"
f(X
) = 39.3216 MHz
IN
BRGi setting
Actual time
value : n
127 (7F
)
16
255 (FF
)
16
127 (7F
)
16
63 (3F
)
16
255 (FF
)
16
127 (7F
)
16
63 (3F
)
16
31 (1F
)
19200.00
16
7751 Group User's Manual
f(X
) = 24.576 MHz
IN
Clock source for peripheral devices select bit = "0"
BRGi count
(bps)
source
150.00
f
128
300.00
f
32
600.00
f
32
f
1200.00
32
2400.00
f
4
4800.00
f
4
9600.00
f
4
f
4
16
BRGi count
(bps)
source
150.00
f
128
f
300.00
128
600.00
f
32
1200.00
f
32
2400.00
f
32
4800.00
f
4
9600.00
f
4
f
4
f
4
16
SERIAL I/O
BRGi setting
Actual time
value : n
(bps)
79 (4F
)
150.00
16
159 (9F
)
300.00
16
79 (4F
)
600.00
16
39 (27
)
1200.00
16
159 (9F
)
2400.00
16
79 (4F
)
4800.00
16
39 (27
)
9600.00
16
19 (13
)
19200.00
16
f(X
) = 40 MHz
IN
BRGi setting
Actual time
value : n
(bps)
129 (81
)
150.24
16
64 (40
)
300.48
16
129 (81
)
600.96
16
64 (40
)
1201.92
16
32 (20
)
2367.42
16
129 (81
)
4807.69
16
64 (40
)
9615.38
16
32 (20
)
18939.39
16
19 (13
)
31250.00
16
7–37
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