MC56F8257MLH Freescale Semiconductor, MC56F8257MLH Datasheet - Page 474

• 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

Modes of Operation
13.4.5.1 Operation in Run Mode
Only MSCAN sleep mode is available as a low power option when the CPU is in run
mode.
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13.4.5.2 Operation in Wait Mode
The WAIT instruction puts the MCU in a low power consumption stand-by mode. If the
CSWAI bit is set, additional power can be saved in power down mode because the CPU
clocks are stopped. After leaving this power down mode, the MSCAN restarts its internal
controllers and enters normal mode again.
While the CPU is in wait mode, the MSCAN can be operated in normal mode and
generate interrupts (registers can be accessed via background debug mode). The MSCAN
can also operate in any of the low-power modes depending on the values of the SLPRQ/
SLPAK and CSWAI bits.
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13.4.5.3 Operation in Stop Mode
The STOP instruction puts the MCU in a low power consumption stand-by mode. In stop
mode, the MSCAN is set in power down mode regardless of the value of the SLPRQ/
SLPAK and CSWAI bits.
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13.4.5.4 MSCAN Sleep Mode
The CPU can request the MSCAN to enter this low power mode by asserting the SLPRQ
bit in the CAN_CTL0 register. The time when the MSCAN enters sleep mode depends
on a fixed synchronization delay and its current activity:
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• If there are one or more message buffers scheduled for transmission (TXEx=0), the
MSCAN will continue to transmit until all transmit message buffers are empty
(TXEx=1, transmitted successfully or aborted) and then goes into sleep mode.
MC56F825x/4x Reference Manual, Rev. 2, 10/2010
Preliminary
Freescale Semiconductor