Programming Model - Analog Devices ADSP-BF506F Hardware Reference Manual

Programming Model

Programming Model
Figure 9-3 and
eral-purpose ports.
WRITE PORTx_FER TO CLEAR
APPROPRIATE PFx, PGx, AND PHx BITS
GPIO OUTPUT
OR INPUT?
WRITE PORTxIO_DIR TO CLEAR
APPROPRIATE BITS FOR INPUT DIRECTION
WRITE PORTxIO_INEN TO SET APPROPRIATE
BITS TO ENABLE INPUT DRIVERS DIRECTION
Figure 9-3. GPIO Flow Chart (Part 1 of 2)
9-22
Figure 9-4 show the programming model for the gen-
GPIO OR
PERIPHERAL?
GPIO
OUTPUT
INPUT
A
ADSP-BF50x Blackfin Processor Hardware Reference
PERIPHERAL
WRITE PORTx_MUX, WRITE PORTx_FER
TO SET APPROPRIATE PERIPHERAL BITS
SEE PERIPHERAL FOR MORE DETAILS
WRITE PORTxIO_DIR TO SET
APPROPRIATE BITS FOR OUTPUT DIRECTION
SET OR CLEAR
GPIO?
WRITE PORTxIO_CLEAR TO SET
APPROPRIATE BITS TO LOWER INDIVIDUAL GPIO
WRITE PORTxIO_SET TO SET
APPROPRIATE BITS TO RAISE INDIVIDUAL GPIO
SET
CLEAR