Motorola MPC860 PowerQUICC User Manual page 118

Part II. PowerPC Microprocessor Module
Table v. Acronyms and Abbreviated Terms (Continued)
Term
CR Condition register
CRC Cyclic redundancy check
CTR Count register
DABR Data address breakpoint register
DAR Data address register
DEC Decrementer register
DMA Direct memory access
DRAM Dynamic random access memory
DSISR Register used for determining the source of a DSI exception
DTLB Data translation lookaside buffer
EA Effective address
FPR Floating-point register
FPSCR Floating-point status and control register
GPR General-purpose register
IEEE Institute of Electrical and Electronics Engineers
ITLB Instruction translation lookaside buffer
IU Integer unit
LIFO Last-in-Þrst-out
LR Link register
LRU Least recently used
LSB Least-signiÞcant byte
lsb Least-signiÞcant bit
LSU Load/store unit
MMU Memory management unit
MSB Most-signiÞcant byte
msb Most-signiÞcant bit
MSR Machine state register
NaN Not a number
No-op No operation
OEA Operating environment architecture
PCI Peripheral component interconnect
PVR Processor version register
II-iv
Meaning
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