Configuration Specification
Page 55
Initialization
Table 56 lists the initialization clock source option, the applicable configuration
schemes, and the maximum frequency for Cyclone V devices.
Table 56. Initialization Clock Source Option and the Maximum Frequency for Cyclone V Devices
Maximum
Frequency
(MHz)
Minimum Number of
Initialization Clock Source Configuration Schemes
Clock Cycles
Internal Oscillator
AS, PS, and FPP
PS and FPP
AS
12.5
125
100
125
(1)
CLKUSR
Tinit
DCLK
PS and FPP
Note to Table 56:
(1) To enable CLKUSR as the initialization clock source, turn on the Enable user-supplied start-up clock (CLKUSR)
option in the Quartus II software from the General panel of the Device and Pin Options dialog box.
Configuration Files
Use Table 57 to estimate the file size before design compilation. Different
configuration file formats, such as a hexadecimal file (.hex) or tabular text file (.ttf)
format, have different file sizes.
For the different types of configuration file and file sizes, refer to the Quartus II
software. However, for a specific version of the Quartus II software, any design
targeted for the same device has the same uncompressed configuration file size.
Table 57 lists the uncompressed raw binary file (.rbf) sizes for Cyclone V devices. The
IOCSR .rbf size is specifically for the Configuration via Protocol (CvP) feature.
Table 57. Uncompressed .rbf Sizes for Cyclone V Devices (Part 1 of 2)
Configuration .rbf Size
Recommended EPCQ Serial
Configuration Device
Variant
Member Code
IOCSR .rbf Size (bits)
(bits)
A2
A4
A5
A7
A9
C3
C4
C5
C7
C9
D5
D7
D9
21,061,120
21,061,120
33,958,336
56,167,328
102,871,552
14,512,096
33,958,336
33,958,336
56,167,328
102,871,552
33,958,336
56,167,328
102,871,552
275,608
275,608
322,072
435,288
400,408
320,280
322,072
322,072
435,288
400,408
322,072
435,288
400,408
EPCQ64
EPCQ64
Cyclone V E (1)
EPCQ128
EPCQ128
EPCQ256
EPCQ32
EPCQ128
EPCQ128
EPCQ128
EPCQ256
EPCQ128
EPCQ128
EPCQ256
Cyclone V GX
Cyclone V GT
July 2014 Altera Corporation
Cyclone V Device Datasheet
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