ep1sgx25d Altera Corporation, ep1sgx25d Datasheet - Page 43

• Manufacturer Part Number: ep1sgx25d
• Description: Stratix Gx Device Family Data Sheet
• Manufacturer: Altera Corporation

Altera Corporation
June 2006
The receiver PLL can also drive the fast regional, regional clocks, and
local routing adjacent to the associated transceiver block.
through
used by the recovered clock.
In the EP1SGX25 device, the receiver PLL recovered clocks from
transceiver blocks 0 and 1 drive RCLK[1..0] while transceiver blocks 2
and 3 drive RCLK[7..6]. The regional clocks feed logic in their
associated regions.
Figure 2–28. EP1SGX25 Receiver PLL Recovered Clock to Regional Clock
Connection
In addition, the receiver PLL’s recovered clocks can drive fast regional
lines (FCLK) as shown
in their associated regions.
2–31
show which fast regional and regional clock resource can be
Figure
2–29. The fast regional clocks can feed logic
PLD
Stratix GX Device Handbook, Volume 1
RCLK[11..10]
RCLK[9..8]
Transceiver Blocks
Stratix GX Transceivers
Stratix GX
Block 0
Block 1
Block 2
Block 3
Figures 2–28
2–33