TB9100 Reciter Service Manual 11
© Tait Electronics Limited January 2006
Software When ‘software’ is not otherwise qualified, it
refers to the ASIF software that is the subject of
this document
SPI Serial Peripheral Interface, a simple serial
communications interface mainly used for I/O
expansion on microprocessors
SPR Special Purpose Register, a type of register used
for configuration and control of the PowerPC
CPU core
SRAM Static Random Access Memory
SW Software
TAP Test Access Port
TDM Time Division Multiplex
Telco Telephone Company
TSA Time Slot Assigner
TTL Transistor-Transistor Logic, an early bipolar
logic family
Tx Transmit
TxD Transmit Data
UART Universal Asynchronous Receiver/Transmitter
UPM Universal Programmable Machine, a type of
user programmable memory controller
USART Universal Synchronous/Asynchronous
Receiver/Transmitter
UTOPIA Universal Test & Operations PHY Interface for
ATM
VCTCXO Voltage-Controlled Temperature Compensated
crystal Oscillator
Vocoder Voice coder, a program that encodes voice
signals into a digital representation, or vice
versa
von Neumann architecture A type of computer architecture that combines
executable code and data into the same
memory space. cf. Harvard architecture.
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