AS3525-A/-B C22O22
Data Sheet, Confidential
7.3.4 GPIO - General purpose input/output ports
The ARM PrimeCell™ PL061 “General Purpose Input/Output” is included in the APB system.
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compliant to AMBA Rev 2.0
each port has eight individually programmable input/output pins, default to input at reset
four ports A, B, C, D are included
programmable interrupt generation capability, from a transition or level condition, on any number of PINs
hardware control capability of GPIO’s for different system configurations.
bit masking in both read and write operations through address lines
Figure 20 GPIO Block Diagram
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