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HT68F20 Datasheet(PDF) 184 Page - Holtek Semiconductor Inc |
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HT68F20 Datasheet(HTML) 184 Page - Holtek Semiconductor Inc |
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184 / 232 page  HT68F20/HT68F30/HT68F40/HT68F50/HT68F60 HT68FU30/HT68FU40/HT68FU50/HT68FU60 Rev. 1.10 184 February 1, 2010 Baud Rate K/BPS Baud Rates for BRGH=1 fCLKI=4MHz fCLKI=7.159MHz BRG Kbaud Error (%) BRG Kbaud Error (%) 0.3 ¾¾¾¾¾¾ 1.2 207 1.202 0.16 185 1.203 0.23 2.4 103 2.404 0.16 92 2.406 0.23 4.8 51 4.808 0.16 46 4.760 -0.83 9.6 25 9.615 0.16 22 9.727 1.32 19.2 12 19.231 0.16 11 18.643 -2.90 38.4 6 35.714 -6.99 5 37.286 -2.90 57.6 3 62.5 8.51 3 55.930 -2.90 115.2 1 125 8.51 1 111.86 -2.90 250 0 250 0 ¾¾¾ Baud Rates and Error Values for BRGH = 1 · BRG Register Bit 76543210 Name BRG7 BRG6 BRG5 BRG4 BRG3 BRG2 BRG1 BRG0 R/W R/W R/W R/W R/W R/W R/W R/W R/W POR xxxxxxxx ²x²: unknown Bit 7~0 BRG7~BRG0: Baud Rate values By programming the BRGH bit in UCR2 Register which allows selection of the related formula described above and programming the required value in the BRG register, the required baud rate can be setup. |
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