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UPSD3312D Datasheet(PDF) 111 Page - STMicroelectronics |
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UPSD3312D Datasheet(HTML) 111 Page - STMicroelectronics |
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111 / 272 page ![]() Obsolete Product(s) - Obsolete Product(s) Obsolete Product(s) - Obsolete Product(s) UPSD33xx Serial UART interfaces Doc ID 9685 Rev 7 111/272 21.3.2 Using Timer/Counter 2 to generate baud rates See Section 20.6.3: Baud rate generator mode on page 102. Table 67. Commonly used baud rates generated from Timer 1 UART mode fOSC (MHz) Desired baud rate Resultant baud rate Baud rate deviation SMOD bit in PCON Timer 1 C/T Bit in TMOD Timer mode in TMOD TH1 Reload value (hex) Mode 0 Max 40.0 3.33 MHz 3.33MHz 0 X X X X Mode 2 Max 40.0 1250 kHz 1250 kHz 0 1 X X X Mode 2 Max 40.0 625 kHz 625 kHz 0 0 X X X Modes 1 or 3 40.0 19200 Hz 18939 Hz -1.36% 1 0 2 F5 Modes 1 or 3 40.0 9600 Hz 9470 Hz -1.36% 1 0 2 EA Modes 1 or 3 36.0 19200 Hz 18570 Hz -2.34% 1 0 2 F6 Modes 1 or 3 33.333 57600 Hz 57870 Hz 0.47% 1 0 2 FD Modes 1 or 3 33.333 28800 Hz 28934 Hz 0.47% 1 0 2 FA Modes 1 or 3 33.333 19200 Hz 19290 Hz 0.47% 1 0 2 F7 Modes 1 or 3 33.333 9600 Hz 9645 Hz 0.47% 1 0 2 EE Modes 1 or 3 24.0 9600 Hz 9615 Hz 0.16% 1 0 2 F3 Modes 1 or 3 12.0 4800 Hz 4808 Hz 0.16% 1 0 2 F3 Modes 1 or 3 11.0592 57600 Hz 57600 Hz 0 1 0 2 FF Modes 1 or 3 11.0592 28800 Hz 28800 Hz 0 1 0 2 FE Modes 1 or 3 11.0592 19200 Hz 19200 Hz 0 1 0 2 FD Modes 1 or 3 11.0592 9600 Hz 9600 Hz 0 1 0 2 FA Modes 1 or 3 3.6864 19200 Hz 19200 Hz 0 1 0 2 FF |
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