MCF5253CVM140 Freescale Semiconductor, MCF5253CVM140 Datasheet - Page 636

• Manufacturer Part Number: MCF5253CVM140
• Description: IC MPU 32BIT 140MHZ 225-MAPBGA
• Manufacturer: Freescale Semiconductor
• Series: MCF525xr

Specifications of MCF5253CVM140

• Core Processor: Coldfire V2
• Core Size: 32-Bit
• Speed: 140MHz
• Connectivity: CAN, EBI/EMI, I²C, QSPI, UART/USART, USB OTG
• Peripherals: DMA, WDT
• Program Memory Type: ROMless
• Ram Size: 128K x 8
• Voltage - Supply (vcc/vdd): 1.08 V ~ 1.32 V
• Data Converters: A/D 6x12b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 225-MAPBGA
• Family Name: MCF5xxx
• Device Core: ColdFire V2
• Device Core Size: 32b
• Frequency (max): 140MHz
• Instruction Set Architecture: RISC
• Supply Voltage 1 (typ): 1.2/3.3V
• Operating Supply Voltage (max): 1.32/3.6V
• Operating Supply Voltage (min): 1.08/3V
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 225
• Package Type: MA-BGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Number Of I /o: -
• Eeprom Size: -
• Program Memory Size: -
• Lead Free Status / Rohs Status: Compliant

1
FlexCAN Module
25-20
Rx New Frame
MBn[RTR]
Note that for transmit message buffers (see
BEFORE
Rx Code
0XY1
X
0000
0100
0010
0110
0
1
1
Tx Code
Initial
1000
1100
1100
A frame was overwritten
MB is active and empty
contents of the MB with
The CPU should not try
Flexcan is updating the
a new receive frame.
to access the MB.
MB is not active
into a full buffer
Description
OVERRUN:
INACTIVE:
Transmission
MB is full
EMPTY:
BUSY:
Successful
Code After
FULL:
1000
0100
–
Table 25-12. Message Buffer Code for Rx Buffers
Table 25-13. Message Buffer Code for Tx Buffers
INACTIVE: Message buffer not ready for transmit and will participate in the arbitration
process.
Data frame to be transmitted once, unconditionally. After transmission, the MB
automatically returns to the INACTIVE state.
Remote frame to be transmitted unconditionally once, and message buffer becomes an
Rx message buffer with the same ID for data frames.
Rx New Frame
Rx Code
MCF5253 Reference Manual, Rev. 1
AFTER
0010
0010
0110
0010
0110
0010
0110
Table
–
25-13), the BUSY bit should be ignored upon read.
MB does not participate in the matching process.
MB participates in the matching process. When a frame is received
successfully, the code is automatically updated to FULL.
The act of reading the control & status (C/S) word followed by
unlocking the MB does not make the code return to EMPTY. It remains
FULL. If a new frame is written to the MB after the C/S word was read
and the MB was unlocked, the code still remains FULL.
If the MB is FULL and a new frame should be written into this MB
before the CPU had time to read it, the MB is overwritten, and the code
is automatically updated to OVERRUN.
If the code indicates OVERRUN but the CPU reads the C/S word and
then unlocks the MB, when a new frame is written to the MB, the code
returns to FULL.
If the code already indicates OVERRUN, and yet another new frame
must be written, the MB will be overwritten again, and the code will
remain OVERRUN.
An EMPTY buffer was written with a new frame (XY was 01).
A FULL/OVERRUN buffer was overwritten (XY was 11).
Description
Comment
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