Cypress CY8C20x66 manual Document Conventions, Acronyms Used, Units of Measure, Numeric Naming

CY8C20x36/46/66, CY8C20396

Document Conventions

Acronyms Used

The following table lists the acronyms that are used in this document.

Table 1. Acronyms

Acronym	Description
AC	alternating current
API	application programming interface
CPU	central processing unit
DC	direct current
FSR	full scale range
GPIO	general purpose IO
GUI	graphical user interface
ICE	in-circuit emulator
ILO	internal low speed oscillator
IMO	internal main oscillator
IO	input/output
LSb	least-significant bit
LVD	low voltage detect
MSb	most-significant bit
POR	power on reset
PPOR	precision power on reset
PSoC®	Programmable System-on-Chip™
SLIMO	slow IMO
SRAM	static random access memory

Units of Measure

A units of measure table is located in the Electrical Specifications section. Table 9 on page 15 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.

Document Number: 001-12696 Rev. *D Page 7 of 34

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