2–36
Chapter 2: Device Datasheet for Cyclone V Devices
I/O Timing
Programmable IOE Delay
Table 2–41 lists the Cyclone V IOE programmable delay settings.
(1)
Table 2–41. IOE Programmable Delay for Cyclone V Devices
Fast Model
Slow Model
C7, I7
Available Minimum
Parameter
Unit
C6
C8, A7
Settings
Offset
Industrial Commercial
Speed Grade Speed Grade Speed Grade
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
ns
ns
ns
ns
ns
Note to Table 2–41:
(1) Pending data extraction from the Quartus II software.
Programmable Output Buffer Delay
Table 2–42 lists the delay chain settings that control the rising and falling edge delays
of the output buffer. The default delay is 0 ps.
(1), (2)
Table 2–42. Programmable Output Buffer Delay for Cyclone V Devices—Preliminary
Symbol
Parameter
Typical
0 (default)
50
Unit
ps
ps
Rising and/or falling edge
delay
DOUTBUF
100
ps
150
ps
Notes to Table 2–42:
(1) Pending data extraction from the Quartus II software.
(2) You can set the programmable output buffer delay in the Quartus II software by setting the Output Buffer Delay
Control assignment to either positive, negative, or both edges, with the specific values stated here (in ps) for the
Output Buffer Delay assignment.
Cyclone V Device Handbook
Volume 1: Device Overview and Datasheet
February 2012 Altera Corporation
ALTERA [ ALTERA CORPORATION ]
