Datasheet

187
SAM9263 [DATASHEET]
Atmel-6249N-ATARM-SAM9263-Datasheet_14-Mar-16
20.6.7.2 Software Configuration - CompactFlash True IDE
The following configuration has to be performed:
 Assign the EBI CS4 and/or EBI CS5 to the CompactFlash Slot 0 or/and Slot 1 by setting the bit EBI0_CS4A
or/and EBI0_CS5A in the EBI0 Chip Select Assignment Register located in the bus matrix memory space.
 The address line A21 is to select Alternate True IDE (A21 = 1) or True IDE (A21 = 0) modes.
 CFRNW, CFS0, CFCS1, CFCE1 and CFCE2 signals are multiplexed with PIO lines and thus the dedicated
PIOs must be programmed in peripheral mode in the PIO controller.
 Configure a PIO line as an output for CFRST and two others as an input for CFIRQ and CARD DETECT
functions respectively.
 Configure SMC CS4 and/or SMC CS5 (for Slot 0 or 1) Setup, Pulse, Cycle and Mode accordingly to
CompactFlash timings and system bus frequency.