MC56F8257MLH Freescale Semiconductor, MC56F8257MLH Datasheet - Page 365

• Manufacturer Part Number: MC56F8257MLH
• Description: DSC 64K FLASH 60MHZ 64-LQFP
• Manufacturer: Freescale Semiconductor
• Series: 56F8xxxr

Specifications of MC56F8257MLH

• Core Processor: 56800E
• Core Size: 16-Bit
• Speed: 60MHz
• Connectivity: CAN, I²C, LIN, SCI, SPI
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 54
• Program Memory Size: 64KB (32K x 16)
• Program Memory Type: FLASH
• Ram Size: 4K x 16
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 16x12b, D/A 1x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 105°C
• Package / Case: 64-LQFP
• Product: DSCs
• Processor Series: 56800E
• Core: 56800E
• Device Million Instructions Per Second: 60 MIPs
• Maximum Clock Frequency: 60 MHz
• Number Of Programmable I/os: 54
• Data Ram Size: 8 KB
• Operating Supply Voltage: 3.3 V
• Maximum Operating Temperature: + 105 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 12 bit, 8 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

The following table lists some examples of achieving target baud rates with a peripheral
bus clock frequency of 32 MHz.
11.4.3 Transmitter
The following figure is a block diagram of the transmitter functions.
Freescale Semiconductor
1666.625
3333.375
SBR Bits
104.125
208.375
416.625
833.375
17.375
52.125
34.75
Table 11-23. Example Baud Rates (Peripheral Bus Clock = 32 MHz)
Maximum baud rate is peripheral bus clock rate divided by 16.
System overhead may preclude processing the data at this
speed.
Receiver Clock (Hz)
1,841,727
920,863
613,909
307,323
153,569
MC56F825x/4x Reference Manual, Rev. 2, 10/2010
76,808
38,398
19,200
9,600
Transmitter Clock
Preliminary
115,108
Note
57,554
38,369
19,208
9,598
4,800
2,400
1,200
(Hz)
600
Chapter 11 Queued Serial Communications Interface (QSCI)
Target Baud Rate
115,200
57,600
38,400
19,200
9,600
4,800
2,400
1,200
600
Error (%)
-0.08
-0.08
-0.08
-0.02
-0.01
0.04
0.01
0.00
0.00
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