MPC555CME Freescale Semiconductor, MPC555CME Datasheet - Page 190

• Manufacturer Part Number: MPC555CME
• Description: KIT EVALUATION FOR MPC555
• Manufacturer: Freescale Semiconductor
• Type: Microcontrollerr

Specifications of MPC555CME

• Contents: Module Board, Installation Guide, Power Supply, Cable, Software and more
• Processor To Be Evaluated: MPC555
• Data Bus Width: 32 bit
• Interface Type: RS-232
• For Use With/related Products: MPC555
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

4.3.10 Compression Environment Initialization
4.4 Modes Of Operation
MPC555
USER’S MANUAL
At power on reset (POR) or with a hard reset, the default settings will be activated
unless the configuration word inputs override these defaults. The compression mode
configuration data to be programmed is supplied by the user software in the flash.
The hard reset configuration word (described in
which control the code compression mode. Bit 21 enables code compression when
equal to “1” and disables code compression when equal to “0”. Bit 22 defines the ex-
ception table code as either compressed with a value of “1” or non-compressed with a
value of “0”.
The burst buffer module can operate in the following modes:
The modes of operation are described in the following paragraphs.
Compressed
Instructions
Memory
• Normal
• Slave
• Reset
• Debug
• Standby
• Burst
/
MPC556
COF Word-Aligned
Physical Address
Compressed
Instruction
Figure 4-13 Code Decompression Process
Code
Rev. 15 October 2000
De
BURST BUFFER
Vocabulary
compressor
BBC
SECTION 7
Compressed Space
Non-Compressed
“Next Instruction”
Bit-Aligned COF
Instruction Code
Address
Address
RESET) has two bits
PowerPC™
Embedded
CPU
MOTOROLA
4-14