Processor Users Manual

MOTOROLA About This Book lxiii
PCI Peripheral component interconnect
PCMCIA Personal Computer Memory Card International Association
PIR Processor identiÞcation register
PRI Primary rate interface
PVR Processor version register
RISC Reduced instruction set computing
RTOS Real-time operating system
RWITM Read with intent to modify
Rx Receive
SCC Serial communication controller
SCP Serial control port
SDLC Synchronous Data Link Control
SDMA Serial DMA
SI Serial interface
SIMM Signed immediate value
SIU System interface unit
SMC Serial management controller
SNA Systems network architecture
SPI Serial peripheral interface
SPR Special-purpose register
SPRGn Registers available for general purposes
SRAM Static random access memory
SRR0 Machine status save/restore register 0
SRR1 Machine status save/restore register 1
TAP Test access port
TB Time base register
TDM Time-division multiplexed
TLB Translation lookaside buffer
TSA Time-slot assigner
Tx Transmit
UART Universal asynchronous receiver/transmitter
UIMM Unsigned immediate value
Table i. Acronyms and Abbreviated Terms (Continued)
Term Meaning