MCF5214CVF66 Freescale Semiconductor, MCF5214CVF66 Datasheet - Page 476

• Manufacturer Part Number: MCF5214CVF66
• Description: IC MPU 32BIT COLDF 256-MAPBGA
• Manufacturer: Freescale Semiconductor
• Series: MCF521xr

Specifications of MCF5214CVF66

• Core Processor: Coldfire V2
• Core Size: 32-Bit
• Speed: 66MHz
• Connectivity: CAN, EBI/EMI, I²C, SPI, UART/USART
• Peripherals: DMA, LVD, POR, PWM, WDT
• Number Of I /o: 142
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 64K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Data Converters: A/D 8x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 256-MAPBGA
• Package: 256MA-BGA
• Device Core: ColdFire
• Family Name: MCF521x
• Maximum Speed: 66 MHz
• Operating Supply Voltage: 3.3 V
• Data Bus Width: 32 Bit
• Number Of Programmable I/os: 142
• Interface Type: QSPI/UART/I2C/CAN
• On-chip Adc: 8-chx10-bit
• Number Of Timers: 8
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

FlexCAN
25-6
Time Stamp Contains a copy of the high byte of the free running timer, which is captured at the beginning of the
New Frame
Before Rx
Rx Length
Tx Length
Reserved
Rx Code
0101
0011
0111
1
1
Field
Code
0000
0100
0010
0110
RTR
Data
For transmit message buffers, upon read, the BUSY bit should be ignored.
When a matching remote request frame is detected, the code for such a message buffer is changed to be 1110.
X
0
1
0
0
1
1
1
Initial Tx Code
identifier field of the frame on the CAN bus.
Refer to
Length (in bytes) of the Rx data stored in offset 0x6 through 0xD of the buffer. This field is written by
the FlexCAN module, copied from the data length code (DLC) field of the received frame.
Length (in bytes) of the data to be transmitted, located in offset 0x6 through 0xD of the buffer. This
field is written by the CPU, and is used as the DLC field value. If remote transmission request (RTR))
= 1, the frame is a remote frame and will be transmitted without the data field, regardless of the value
in Tx length.
This field can store up to eight data bytes for a frame. For Rx frames, the data is stored as it is
received from the bus. For Tx frames, the CPU provides the data to be transmitted within the frame.
This word entry field (16 bits) should not be accessed by the CPU.
NOT ACTIVE — message buffer is not active.
EMPTY — message buffer is active and empty.
FULL — message buffer is full.
OVERRUN — second frame was received into a full
buffer before the CPU read the first one.
BUSY — message buffer is now being filled with a new
receive frame. This condition will be cleared within 20
cycles.
1010
1000
1100
1100
1110
MCF5282 and MCF5216 ColdFire Microcontroller User’s Manual, Rev. 3
Table 25-2. Common Extended/Standard Format Frames
Table 25-3
Table 25-4. Message Buffer Codes for Transmit Buffers
1
Table 25-3. Message Buffer Codes for Receive Buffers
Message buffer not ready for transmit.
Data frame to be transmitted once, unconditionally.
Remote frame to be transmitted once, and message buffer
becomes an Rx message buffer for data frames.
Data frame to be transmitted only as a response to a remote
frame.
Data frame to be transmitted only once, unconditionally, and
then only as a response to remote frame.
and
Description
Table
25-4.
Description
Description
New Frame
Rx Code
After Rx
0010
0110
0010
0110
0110
—
If a CPU read occurs before
the new frame, new receive
code is 0010.
An empty buffer was filled.
A full buffer was filled.
An overrun buffer was filled.
Comment
Freescale Semiconductor
Transmission
—
—
Successful
Code After
1000
0100
1010
1010
—