Figure 4-1: GCLK Networks in Cyclone V E, GX, and GT Devices
This figure represents the top view of the silicon die that corresponds to a reverse view of the device package.
GCLK[12..15]
GCLK[8..11]
GCLK[4..7]
GCLK[0..3]
Q1
Q4
Q2
Q3
CLK[0..3][p,n]
CLK[8..11][p,n]
CLK[4..7][p,n]
For Cyclone V E A2 and A4
devices, and Cyclone V GX C3
device, only CLK[6][p,n] pins are
available.
Figure 4-2: GCLK Networks in Cyclone V SE, SX, and ST Devices
This figure represents the top view of the silicon die that corresponds to a reverse view of the device package.
GCLK[12..15]
GCLK[8..11]
GCLK[4..7]
GCLK[0..3]
Q1
Q4
Q2
Q3
CLK[0..3][p,n]
CLK[6,7][p,n]
CLK[4,5][p,n]
GCLK network is not available in
quadrant 2 for Cyclone V SE A5 and
A6 devices, Cyclone V ST D5 and
D6 devices, and Cyclone V SX C5
and C6 devices.
Regional Clock Networks
RCLK networks are only applicable to the quadrant they drive into. RCLK networks provide the lowest clock
insertion delay and skew for logic contained within a single device quadrant. The Cyclone V IOEs and
Clock Networks and PLLs in Cyclone V Devices
Altera Corporation
CV-52004
Regional Clock Networks
4-4
2014.01.10