Analog Devices ADSP-BF506F Hardware Reference Manual page 18

Contents
Internal Interfaces ................................................................... 9-9
GP Timer Interaction With Other Blocks .......................... 9-10
Buffered CLKIN (CLKBUF) ......................................... 9-10
GP Counter .................................................................. 9-10
PPI ............................................................................... 9-10
UART .......................................................................... 9-10
SPORT ........................................................................ 9-11
ACM ............................................................................ 9-11
Performance/Throughput ...................................................... 9-12
Description of Operation ............................................................ 9-12
Operation ............................................................................. 9-12
General-Purpose I/O Modules ............................................... 9-13
GPIO Interrupt Processing .................................................... 9-16
Programming Model ................................................................... 9-22
Hysteresis Control ...................................................................... 9-24
PORTx Hysteresis (PORTx_HYSTERESIS) Register ............. 9-24
Drive Strength Control ............................................................... 9-26
Memory-Mapped GPIO Registers ............................................... 9-27
Port Multiplexer Control Registers (PORTx_MUX) ............... 9-27
Function Enable Registers (PORTx_FER) ............................. 9-30
GPIO Direction Registers (PORTxIO_DIR) ......................... 9-30
GPIO Input Enable Registers (PORTxIO_INEN) ................. 9-31
GPIO Data Registers (PORTxIO) ......................................... 9-31
GPIO Set Registers (PORTxIO_SET) ................................... 9-32
xviii ADSP-BF50x Blackfin Processor Hardware Reference