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AS3525 数据表(PDF) 49 Page - ams AG |
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AS3525 数据表(HTML) 49 Page - ams AG |
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49 / 194 page  AS3525-A/-B C22O22 Data Sheet, Confidential © 2005-2009, austriamicrosystems AG, 8141 Unterpremstaetten, Austria-Europe. All Rights Reserved. www.austriamicrosystems.com Revision 1.13 49 - 194 7.3.4 GPIO - General purpose input/output ports The ARM PrimeCell™ PL061 “General Purpose Input/Output” is included in the APB system. • 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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