MPC561MZP56 Freescale, MPC561MZP56 Datasheet - Page 700

• Manufacturer Part Number: MPC561MZP56
• Manufacturer: Freescale

Specifications of MPC561MZP56

• Cpu Family: MPC56x
• Device Core: PowerPC
• Device Core Size: 32b
• Frequency (max): 56MHz
• Interface Type: QSPI/SCI/SPI/UART
• Total Internal Ram Size: 32KB
• # I/os (max): 56
• Number Of Timers - General Purpose: 22
• Operating Supply Voltage (typ): 2.6/5V
• Operating Supply Voltage (max): 2.7/5.25V
• Operating Supply Voltage (min): 2.5/4.75V
• On-chip Adc: 2(32-chx10-bit)
• Instruction Set Architecture: RISC
• Operating Temp Range: -40C to 125C
• Operating Temperature Classification: Automotive
• Mounting: Surface Mount
• Pin Count: 388
• Package Type: BGA
• Program Memory Type: ROMLess
• Program Memory Size: Not Required
• Lead Free Status / RoHS Status: Not Compliant

CAN 2.0B Controller Module
16.3.1.2
Table 16-4
16.3.1.3
Table 16-5
16.3.1.4
To allow double buffering of messages, the TouCAN has two shadow buffers called serial message buffers.
The TouCAN uses these two buffers for buffering both received messages and messages to be transmitted.
Only one serial message buffer is active at a time, and its function depends upon the operation of the
TouCAN at that time. These buffers are not accessible or visible to the user.
16-6
ID[28:18]/[17:15]
Substitute Remote
Request (SRR)
ID Extended (IDE)
ID[14:0]
Remote Transmission
Request (RTR)
RTR/SRR Bit
16-bit Time
Treatment
ID[28:18]
Stamp
Field
RTR
Field
describes the message buffer fields used only for extended identifier format frames.
describes the message buffer fields used only for standard identifier format frames.
Fields for Extended Format Frames
Fields for Standard Format Frames
Serial Message Buffers
The ID_LOW word, which is not needed for standard format, is used in a standard format buffer to store
the 16-bit value of the free-running timer which is captured at the beginning of the identifier field of the
frame on the CAN bus.
Contains bits [28:18] of the identifier, located in the ID_HIGH word of the message buffer. The four
least significant bits in this register (corresponding to the IDE bit and ID[17:15] for an extended
identifier message) must all be written as logic zeros to ensure proper operation of the TouCAN.
This bit is located in the ID_HIGH word of the message buffer;
0 Data Frame
1 Remote Frame
If the TouCAN transmits this bit as a one and receives it as a zero, an “arbitration loss” is
indicated. If the TouCAN transmits this bit as a zero and receives it as a one, a bit error is indicated.
If the TouCAN transmits a value and receives a matching response, a successful bit transmission is
indicated.
Contains the 14 most significant bits of the extended identifier, located in the ID_HIGH word of the
message buffer.
Contains a fixed recessive bit, used only in extended format. Should be set to one for Tx buffers. It
will be stored as received on the CAN bus for Rx buffers.
If extended format frame is used, this field should be set to one. If zero, standard format frame
should be used.
Bits [14:0] of the extended identifier, located in the ID_LOW word of the message buffer.
This bit is located in the least significant bit of the ID_LOW word of the message buffer
0 Data Frame
1 Remote Frame
MPC561/MPC563 Reference Manual, Rev. 1.2
Table 16-4. Extended Format Frames
Table 16-5. Standard Format Frames
Description
Description
Freescale Semiconductor