Document Number: 002-00123 Rev. *J Page 31 of 35
PSoC
®
4: PSoC 4000S Family
Datasheet
Acronyms
Table 40. Acronyms Used in this Document
Acronym Description
abus analog local bus
ADC analog-to-digital converter
AG analog global
AHB AMBA (advanced microcontroller bus
architecture) high-performance bus, an ARM
data transfer bus
ALU arithmetic logic unit
AMUXBUS analog multiplexer bus
API application programming interface
APSR application program status register
ARM
®
advanced RISC machine, a CPU architecture
ATM automatic thump mode
BW bandwidth
CAN Controller Area Network, a communications
protocol
CMRR common-mode rejection ratio
CPU central processing unit
CRC cyclic redundancy check, an error-checking
protocol
DAC digital-to-analog converter, see also IDAC, VDAC
DFB digital filter block
DIO digital input/output, GPIO with only digital
capabilities, no analog. See GPIO.
DMIPS Dhrystone million instructions per second
DMA direct memory access, see also TD
DNL differential nonlinearity, see also INL
DNU do not use
DR port write data registers
DSI digital system interconnect
DWT data watchpoint and trace
ECC error correcting code
ECO external crystal oscillator
EEPROM electrically erasable programmable read-only
memory
EMI electromagnetic interference
EMIF external memory interface
EOC end of conversion
EOF end of frame
EPSR execution program status register
ESD electrostatic discharge
ETM embedded trace macrocell
FIR finite impulse response, see also IIR
FPB flash patch and breakpoint
FS full-speed
GPIO general-purpose input/output, applies to a PSoC
pin
HVI high-voltage interrupt, see also LVI, LVD
IC integrated circuit
IDAC current DAC, see also DAC, VDAC
IDE integrated development environment
I
2
C, or IIC Inter-Integrated Circuit, a communications
protocol
IIR infinite impulse response, see also FIR
ILO internal low-speed oscillator, see also IMO
IMO internal main oscillator, see also ILO
INL integral nonlinearity, see also DNL
I/O input/output, see also GPIO, DIO, SIO, USBIO
IPOR initial power-on reset
IPSR interrupt program status register
IRQ interrupt request
ITM instrumentation trace macrocell
LCD liquid crystal display
LIN Local Interconnect Network, a communications
protocol.
LR link register
LUT lookup table
LVD low-voltage detect, see also LVI
LVI low-voltage interrupt, see also HVI
LVTTL low-voltage transistor-transistor logic
MAC multiply-accumulate
MCU microcontroller unit
MISO master-in slave-out
NC no connect
NMI nonmaskable interrupt
NRZ non-return-to-zero
NVIC nested vectored interrupt controller
NVL nonvolatile latch, see also WOL
opamp operational amplifier
PAL programmable array logic, see also PLD
Table 40. Acronyms Used in this Document (continued)
Acronym Description
