ST10F276-6QR3 STMicroelectronics, ST10F276-6QR3 Datasheet - Page 57

• Manufacturer Part Number: ST10F276-6QR3
• Description: MCU 16BIT 832K FLASH 144-PQFP
• Manufacturer: STMicroelectronics
• Series: ST10r

Specifications of ST10F276-6QR3

• Core Processor: ST10
• Core Size: 16-Bit
• Speed: 64MHz
• Connectivity: ASC, CAN, EBI/EMI, I²C, SSC, UART/USART
• Peripherals: POR, PWM, WDT
• Number Of I /o: 111
• Program Memory Size: 832KB (832K x 8)
• Program Memory Type: FLASH
• Ram Size: 68K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 24x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 144-MQFP, 144-PQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

ST10F276E
5.4
5.4.1
Figure 10. Baud rate deviation between host and ST10F276E
The minimum baud rate (B
of timer T6, when measuring the zero byte, that is, it depends on the CPU clock. Using the
maximum T6 count 2
standard baud rate in this case would be 1200 baud. Baud rates below B
T6 to overflow. In this case, ASC0 cannot be initialized properly.
The maximum baud rate (B
still does not exceed the limit, that is, all baud rates between B
deviation limit. The maximum standard baud rate that fulfills this requirement is 19200 baud.
Higher baud rates, however, may be used as long as the actual deviation does not exceed
the limit. A certain baud rate (marked “I” in
limit, while an even higher baud rate (marked “II” in
depends on the host interface.
Standard bootstrap with CAN
Features
The bootstrap via CAN has the same overall behavior as the bootstrap via UART:
●
●
●
2.5%
Same bootstrapping steps;
Same bootstrap method: Analyze the timing of a predefined frame, send back an
acknowledge frame BUT only on request, load a fixed number of bytes and run;
Same functionalities: Boot with different crystals and PLL ratios.
B
F
Low
B
16
in the formula the minimum baud rate is calculated. The lowest
B
Low
High
High
in
in
Figure
Figure
I
10) is determined by the maximum count capacity
Figure
10) is the highest baud rate where the deviation
II
10) may, for example, violate the deviation
Figure
10) stays well below it. This
Low
and B
High
Low
Bootstrap loader
are below the
would cause
B
HOST
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