7 / 37 page
CY8C21123, CY8C21223, CY8C21323
Document Number: 38-12022 Rev. *H
Page 7 of 37
Document Conventions
Acronyms Used
The following table lists the acronyms used in this data sheet.
Units of Measure
A units of measure table is located in the section
Electrical Specifications on page 16. Table 11 on page 16 lists all
the abbreviations used to measure the PSoC devices.
Numeric Naming
Hexadecimal numbers are represented with all letters in
uppercase with an appended lowercase ‘h’ (for example, ‘14h’ or
‘3Ah’). Hexadecimal numbers may also be represented by a ‘0x’
prefix, the C coding convention. Binary numbers have an
appended
lowercase
‘b’
(for
example,
01010100b’
or
‘01000011b’). Numbers not indicated by an ‘h’, ‘b’, or 0x are
decimal.
Table 2. Acronyms
Acronym
Description
AC
alternating current
ADC
analog-to-digital converter
API
application programming interface
CPU
central processing unit
CT
continuous time
DAC
digital-to-analog converter
DC
direct current
EEPROM
electrically erasable programmable read-only
memory
FSR
full scale range
GPIO
general purpose IO
IO
input/output
IPOR
imprecise power on reset
LSb
least-significant bit
LVD
low voltage detect
MSb
most-significant bit
PC
program counter
POR
power on reset
PPOR
precision power on reset
PSoC®
Programmable System-on-Chip
PWM
pulse width modulator
ROM
read only memory
SC
switched capacitor
SMP
switch mode pump
SRAM
static random access memory
[+] Feedback
[+] Feedback
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
