MPC561MZP56 Freescale, MPC561MZP56 Datasheet - Page 1089

• 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

Appendix A
MPC562/MPC564 Compression Features
The MPC562/MPC564 contains a number of code compression features not found in the
MPC561/MPC563 that function from the burst buffer controller module (BBC) module of the device.
The BBC’s instruction code decompressor unit (ICDU) is responsible for on-line (previously compressed)
instruction code decompression in the decompression on mode. The ICDU contains a 2-Kbyte RAM
(DECRAM) that is used for decompressor vocabulary table storage when compression is enabled or as
general-purpose memory on the U-bus when compression is disabled.
A.1
The following are instruction code decompression unit key features:
A.2
The operational model used by the MPC562/MPC564 is explained in the sections below.
A.2.1
Freescale Semiconductor
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Instruction code on-line decompression is based on an “instruction class” algorithm.
There is no need for address translation between compressed and non-compressed address spaces
— ICDU provides the “next instruction address” to the RCPU.
In most cases, instruction decompression takes one clock.
Code decompression is pipelined:
— No performance penalty during sequential program flow execution
— Minimal performance penalty due to change of program flow execution
Two operation modes are available: decompression on and decompression off. Switches between
compressed and non-compressed user application software is possible.
Adaptive vocabularies scheme is supported; each user application can have its own optimum
vocabularies.
Implemented for MPC56x architecture
Up to 50% instruction code size reduction
No need for address translation tables
ICDU Key Features
Class-Based Compression Model Main Principles
Compression Model Features
The code compression features of the MPC562/MPC564 are different than
the code compression of the MPC556.
MPC561/MPC563 Reference Manual, Rev. 1.2
NOTE
A-1