Datasheet
Section 12 Serial Communication Interface 
Rev.7.00 Dec. 24, 2008 Page 399 of 698 
REJ09B0074-0700 
Operating Frequency φ (MHz) 
18 19.6608 20  24 
Bit Rate 
(bps)  n  N  Error (%)  n  N  Error (%) n  N  Error (%)  n  N  Error (%) 
110  3 79 –0.12  3  86 0.31  3 88 –0.25  3  106 –0.44 
150  2 233 0.16  2  255 0.00  3 64 0.16  3  77 0.16 
300  2 116 0.16  2  127 0.00  2 129 0.16  2  155 0.16 
600  1 233 0.16  1  255 0.00  2 64 0.16  2  77 0.16 
1200  1 116 0.16  1  127 0.00  1 129 0.16  1  155 0.16 
2400  0 233 0.16  0  255 0.00  1 64 0.16  1  77 0.16 
4800  0 116 0.16  0  127 0.00  0 129 0.16  0  155 0.16 
9600  0 58 –0.69  0  63 0.00  0 64 0.16  0  77 0.16 
19200  0 28 1.02  0  31 0.00  0 32 –1.36   0  38 0.16 
31250  0 17 0.00  0  19 –1.70  0 19 0.00  0  23 0.00 
38400  0 14 –2.34  0  15 0.00  0 15 1.73  0  19 –2.34 
Note:  This table shows bit rates when the ABCS bit in SEMRA_0 is cleared to 0. 
When the ABCS bit in SEMR0 is set to 1, the bit rates are twice those shown in this table. 
In this LSI, operating frequency φ must be 6 MHz or greater. 
Table 12.4  Maximum Bit Rate for Each Frequency (Asynchronous Mode) 
Maximum Bit Rate 
(kbps) 
Maximum Bit Rate 
(kbps) 
φ (MHz)  ABCS = 0  ABCS = 1  n  N  φ (MHz)  ABCS = 0  ABCS = 1  n  N 
2 62.5 125.0 0 0 9.8304 307.2  614.4  0 0 
2.097152 65.536  131.027  0 0  10  312.5  625.0  0 0 
2.4576 76.8  153.6  0  0 12  375.0 750.0 0 0 
3  93.75 187.5 0 0  12.288 384.0  768.0  0 0 
3.6864 115.2 230.4 0 0 14  437.5 875.0 0 0 
4  125.0 250.0 0 0  14.7456 460.8 921.6  0  0 
4.9152 153.6 307.2 0 0  16 500.0 1000.0 0 0 
5 156.25 312.5 0 0 17.2032 537.6  1075.2  0  0 
6  187.5 375.0 0 0  18  562.5  1125.0 0 0 
6.144 192.0 384.0 0 0  19.6608 614.4  1228.8  0  0 
7.3728 230.4 460.8 0 0  20 625.0 1250.0 0 0 
8  250.0 500.0 0 0  24  750.0  1500.0 0 0 










