Texas Instruments BoosterPack BOOSTXL-IOLINKM-8 EVM User Manual page 9

www.ti.com
Data From
Shift Register
Data From
Shift Register
Write Configuration
Pulse
Write Pulse
Read Pulse
Data From
Shift Register
Write Polarity Pulse
SLLU357 – MAY 2023
Submit Document Feedback
Configuration
Register
D Q
FF
D
C
Q
K
FF
C
K
Output
Port
Register
Figure 1-6. TCA6424A Simplified Schematic of P00 to P27
Copyright © 2023 Texas Instruments Incorporated
Q1
Q
Q
Input
Port
Register
D Q
FF
C
Q
K
D Q
FF
C
Q
K
Polarity
Inversion
Register
BOOSTXL-IOLINKM-8 EVM User's Guide
Evaluation Module Overview
Output Port
Register Data
V
CCP
P00 to P27
Q2
ESD Protection Diode
GND
Input Port
Register Data
To INT
Polarity
Register Data
9