MC56F8257MLH Freescale Semiconductor, MC56F8257MLH Datasheet - Page 466

• 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

Functional Description
466
• Eight identifier acceptance filters, each to be applied to the first eight bits of the
• Closed filter. No CAN message is copied into the foreground buffer RxFG, and the
Extended Identifier
Standard Identifier
identifier. This mode implements eight independent filters for the first eight bits of a
CAN 2.0A/B compliant standard identifier or a CAN 2.0B compliant extended
identifier. The next figure shows how the first 32-bit filter bank (CAN_IDAR0–
CAN_IDAR3, CAN_IDMR0–CAN_IDMR3) produces filter 0 to 3 hits. Similarly,
the second filter bank (CAN_IDAR4–CAN_IDAR7, CAN_IDMR4–CAN_IDMR7)
produces filter 4 to 7 hits.
RXF flag is never set.
CAN 2.0A/B
CAN 2.0B
• a) the 14 most significant bits of the extended identifier plus the SRR and IDE
• b) the 11 bits of the standard identifier, the RTR and IDE bits of CAN 2.0A/B
bits of CAN 2.0B messages or
messages. The next figure shows how the first 32-bit filter bank (CAN_IDAR0–
CAN_IDAR3, CAN_IDMR0–CAN_IDMR3) produces filter 0 and 1 hits.
Similarly, the second filter bank (CAN_IDAR4–CAN_IDAR7, CAN_IDMR4–
CAN_IDMR7) produces filter 2 and 3 hits.
A M 7
A C 7
ID 2 8
ID 1 0
Figure 13-82. 32-bit Maskable Identifier Acceptance Filter
C A N ID M R 0
C A N ID A R 0
ID R 0
ID R 0
MC56F825x/4x Reference Manual, Rev. 2, 10/2010
A M 0
ID 2 1
A C 0
ID 3
A M 7
A C 7
ID 2 0
ID 2
C A N ID M R 1
C A N ID A R 1
ID R 1
ID R 1
Preliminary
ID A c c e p te d (F ilte r 0 H it)
ID E
ID 1 5
A M 0
A C 0
A M 7
A C 7
ID 1 4
ID 1 0
C A N ID M R 2
C A N ID A R 2
ID R 2
ID R 2
A M 0
A C 0
ID 7
ID 3
A M 7
A C 7
ID 6
ID 1 0
Freescale Semiconductor
C A N ID M R 3
C A N ID A R 3
ID R 3
ID R 3
A M 0
A C 0
R T R
ID 3