
The CompactFlash core maps the Avalon-MM bus signals to the CompactFlash device with proper
timing, thus allowing Avalon-MM master peripherals to directly access the registers on the CompactFlash
device.
Compact Flash
For more information, refer to the CF+ and CompactFlash specifications available at www.compact-
flash.org.
Required Connections
The table below lists the required connections between the CompactFlash core and the CompactFlash
device.
Table 4-1: Core to Device Required Connections
CompactFlash Interface Signal
Name
Pin Type CompactFlash Pin
Number
addr[0] Output 20
addr[1] Output 19
addr[2] Output 18
addr[3] Output 17
addr[4] Output 16
addr[5] Output 15
addr[6] Output 14
addr[7] Output 12
addr[8] Output 11
addr[9] Output 10
addr[10] Output 8
atasel_n Output 9
cs_n[0] Output 7
cs_n[1] Output 32
data[0] Input/Output 21
data[1] Input/Output 22
data[2] Input/Output 23
data[3] Input/Output 2
data[4] Input/Output 3
data[5] Input/Output 4
data[6] Input/Output 5
4-2
Required Connections
UG-01085
2014.24.07
Altera Corporation
Compact Flash Core
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