CY8C20X34 CYPRESS [Cypress Semiconductor], CY8C20X34 Datasheet - Page 17

• Manufacturer Part Number: CY8C20X34
• Description: Technical Reference Manual (TRM)
• Manufacturer: CYPRESS [Cypress Semiconductor]

Documentation Conventions
There are only four distinguishing font types used in this
manual, besides those found in the headings.
Register Conventions
This table lists the register conventions that are specific to
this manual. A more detailed set of register conventions is
located in the
Register Conventions
Numeric Naming
Hexidecimal numbers are represented with all letters in
uppercase with an appended lowercase ‘h’ (for example,
‘14h’ or ‘3Ah’) and hexidecimal numbers may also be rep-
resented 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’ or ‘b’ are decimal.
PSoC CY8C20x34 TRM, Version 1.0
‘x’ in a register
name
R
W
O
L
C
00
XX
0,
1,
x,
Empty, grayed-
out table cell
Convention
The first is the use of italics when referencing a docu-
ment title or file name.
The second is the use of bold italics when referencing a
term described in the Glossary of this manual.
The third is the use of Times New Roman font, distinguish-
ing equation examples.
The fourth is the use of Courier New font, distinguish-
ing code examples.
Register Reference chapter on page
PRTxIE
R : 00
W : 00
RO : 00
RL : 00
RC : 00
RW : 00
RW : XX
0,04h
1,23h
x,F7h
Example
Multiple instances/address ranges of the
same register
Read register or bit(s)
Write register or bit(s)
Only a read/write register or bit(s).
Logical register or bit(s)
Clearable register or bit(s)
Reset value is 0x00 or 00h
Register is not reset
Register is in bank 0
Register is in bank 1
Register exists in register bank 0 and reg-
ister bank 1
Reserved bit or group of bits, unless oth-
erwise stated
Description
139.
Units of Measure
This table lists the units of measure used in this manual.
Units of Measure
Symbol
MHz
ppm
Kbit
kHz
mA
mV
KB
ms
dB
Hz
µA
µF
µV
pF
µs
ns
K
V
k
decibels
hertz
kilo, 1000
2
1024 bytes
1024 bits
kilohertz (32.000)
megahertz
microampere
microfarad
microsecond
microvolts
milli-ampere
milli-second
milli-volts
nanosecond
picofarad
parts per million
volts
10
, 1024
Unit of Measure
Section A: Overview
17