Owner's manual

50 Copyright Cirrus Logic, Inc. 2011
(All Rights Reserved) DS508F2
EP7312
High-Performance, Low-Power System on Chip
CONVENTIONS
This section presents acronyms, abbreviations, units of
measurement, and conventions used in this data sheet.
Acronyms and Abbreviations
Table 23 lists abbreviations and acronyms used in this data
sheet.
Units of Measurement
Table 23. Acronyms and Abbreviations
Acronym/
Abbreviation
Definition
A/D analog-to-digital
ADC analog-to-digital converter
CODEC coder / decoder
D/A digital-to-analog
DMA direct-memory access
EPB embedded peripheral bus
FCS frame check sequence
FIFO first in / first out
FIQ fast interrupt request
GPIO general purpose I/O
ICT in circuit test
IR infrared
IRQ standard interrupt request
IrDA Infrared Data Association
JTAG Joint Test Action Group
LCD liquid crystal display
LED light-emitting diode
LQFP low profile quad flat pack
LSB least significant bit
MIPS millions of instructions per second
MMU memory management unit
MSB most significant bit
PBGA plastic ball grid array
PCB printed circuit board
PDA personal digital assistant
PLL phase locked loop
p/u pull-up resistor
RISC reduced instruction set computer
RTC Real-Time Clock
SIR slow (9600–115.2 kbps) infrared
SRAM static random access memory
SSI synchronous serial interface
TAP test access port
TLB translation lookaside buffer
UART universal asynchronous receiver
Table 24. Unit of Measurement
Symbol Unit of Measure
C
degree Celsius
fs sample frequency
Hz hertz (cycle per second)
kbps kilobits per second
KB kilobyte (1,024 bytes)
kHz kilohertz
k
 kilo Ohm
Mbps megabits (1,048,576 bits) per second
MB megabyte (1,048,576 bytes)
MBps megabytes per second
MHz megahertz (1,000 kilohertz)
A microampere
Fmicrofarad
Wmicrowatt
s microsecond (1,000 nanoseconds)
mA milliampere
mW milliwatt
ms millisecond (1,000 microseconds)
ns nanosecond
Vvolt
Wwatt
Table 23. Acronyms and Abbreviations (Continued)
Acronym/
Abbreviation
Definition