NXP Semiconductors PCAL6524EV, User Manual, Page: 30 / 31

NXP Semiconductors
UM11711
PCAL6524EV-ARD evaluation board
Contents
1 Introduction ......................................................... 4
2 Finding kit resources and information on
the NXP web site ................................................ 4
2.1 Collaborate in the NXP community ....................4
3 Getting ready .......................................................4
3.1 Kit contents ........................................................5
3.2 Assumptions ...................................................... 5
3.3 Static handling requirements ............................. 5
3.4 Minimum system requirements ..........................5
4 Getting to know the hardware ........................... 5
4.1 PCAL6524EV-ARD features ..............................5
4.2 Kit featured components ....................................6
4.3 Block diagram ....................................................6
4.4 Schematic diagram ............................................7
4.5 Arduino port .......................................................7
4.6 I2C-bus .............................................................. 9
4.7 Control bus ........................................................ 9
4.8 I/O bus ...............................................................9
4.9 CPLD ............................................................... 10
4.9.1 Direct write .......................................................11
4.9.2 Count mode ..................................................... 12
4.9.3 Idle mode .........................................................12
4.10 Jumpers and test points .................................. 13
5 Installing and configuring software tools ....... 14
6 Configuring the hardware ................................ 15
6.1 Using the PCAL6524EV-ARD with an
IMXRT1050 EVK board ................................... 15
6.2 Using the PCAL6524EV-ARD with an
LPCXpresso55S69 development board ...........17
6.3 Using the PCAL6524EV-ARD with an i.MX
8M Mini LPDDR4 EVK board .......................... 19
6.4 Using PCAL6524EV-ARD with another
device ...............................................................21
7 GUI description ................................................. 22
8 Abbreviations .................................................... 27
9 References .........................................................27
10 Legal information ..............................................28
Please be aware that important notices concerning this document and the product(s)
described herein, have been included in section 'Legal information'.
© NXP B.V. 2022. All rights reserved.
For more information, please visit: http://www.nxp.com
For sales office addresses, please send an email to: salesaddresses@nxp.com
Date of release: 19 January 2022
Document identifier: UM11711