MC56F8257MLH Freescale Semiconductor, MC56F8257MLH Datasheet - Page 469

• 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

13.4.3.1 Protocol Violation Protection
The MSCAN protects the user from accidentally violating the CAN protocol through
programming errors. The protection logic implements the following features:
>
13.4.3.2 Clock System
This figure shows the structure of the MSCAN clock generation circuitry.
Freescale Semiconductor
• The receive and transmit error counters cannot be written or otherwise manipulated.
• All registers that control the configuration of the MSCAN cannot be modified while
• The TXCAN pin is immediately forced to a recessive state when the MSCAN goes
• The MSCAN enable bit (CANE) is writable only once in normal system operation
the MSCAN is on-line. The MSCAN must be in initialization mode. The
corresponding INITRQ/INITAK handshake bits in the CAN_CTL0/CAN_CTL1
registers serve as a lock to protect the following registers:
into the power down mode or initialization mode.
modes, which provides further protection against inadvertently disabling the
MSCAN.
• MSCAN control 1 register (CAN_CTL1)
• MSCAN bus timing registers 0 and 1 (CAN_BTR0, CAN_BTR1)
• MSCAN identifier acceptance control register (CAN_IDAC)
• MSCAN identifier acceptance registers (CAN_IDAR0–CAN_IDAR7)
• MSCAN identifier mask registers (CANIDMR0–CANIDMR7)
MC56F825x/4x Reference Manual, Rev. 2, 10/2010
Chapter 13 Freescale's Scalable Controller Area Network (MSCAN)
Preliminary
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