EP7209 datasheet(11/128 Pages) CIRRUS

11 / 128 page

EP7209

DS453PP2

1.2

Units of Measurement

1.3

General Conventions

Hexadecimal numbers are presented with all letters

in uppercase and a lowercase ‘h’ appended or with

a 0x at the beginning.

For example, 0x14 and

03CAh are hexadecimal numbers. Binary numbers

are enclosed in single quotation marks when in text

(for example, ‘11’ designates a binary number).

Numbers not indicated by an ‘h’, 0x or quotation

marks are decimal.

Registers are referred to by acronym, as listed in

the tables on the previous page, with bits listed in

brackets MSB-to-LSB separated by a colon (:) (for

example, CODR[7:0]), or LSB-to-MSB separated

by a hyphen (for example, CODR[0–2]).

The use of ‘tbd’ indicates values that are ‘to be de-

termined’, ‘n/a’ designates ‘not available’, and

‘n/c’ indicates a pin that is a ‘no connect’.

1.4

Pin Description Conventions

Abbreviations used for signal directions are listed

in Table 3.

Symbol

Unit of Measure

°C

degree Celsius

hertz (cycle per second)

kbits/s

kilobits per second

kbyte

kilobyte (1,024 bytes)

kHz

kilohertz

Ω

kilohm

Mbps

megabits (1,048,576 bits) per second

Mbyte

megabyte (1,048,576 bytes)

MHz

megahertz (1,000 kilohertz)

µAmicroampere

µFmicrofarad

µWmicrowatt

µs

microsecond (1,000 nanoseconds)

milliampere

milliwatt

millisecond (1,000 microseconds)

nanosecond

Vvolt

Wwatt

Table 2. Unit of Measurement

Abbreviation

Direction

Input

OOutput

I/O

Input or Output

Table 3. Pin Description Conventions

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