LFXP10E-4FN256C Lattice, LFXP10E-4FN256C Datasheet - Page 272

• Manufacturer Part Number: LFXP10E-4FN256C
• Description: IC FPGA 9.7KLUTS 188I/O 256-BGA
• Manufacturer: Lattice

Specifications of LFXP10E-4FN256C

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Lattice Semiconductor
DCS MODE = NEG
At the falling edge (NEG) of SEL, the DCSOUT changes from CLK0 to CLK1.
DCS MODE = HIGH_LOW
SEL is active high (HIGH) to select CLK1, and the disabled output is LOW.
DCS MODE = LOW_LOW
SEL is active low (LOW) to select CLK0, and the disabled output is LOW.
DCS MODE = HIGH_HIGH
SEL is active high (HIGH) to select CLK1, and the disabled output is HIGH.
DCS MODE = LOW_HIGH
SEL is active low (LOW) to select CLK0, and the disabled output is HIGH.
DCSOUT
SEL
CLK1
DCSOUT
CLK1
SEL
CLK0
- Switch low at CLK1 falling edge.
- If SEL is low, output stays low at on
CLK1 rising edge. SEL must not
change during setup prior to rising clock.
DCS MODE = HIGH_LOW
SEL Falling edge:
- Wait for CLK1 falling edge,
- Switch output at CLK0 falling edge
latch output & remain low
DCS MODE = NEG
11-16
DCSOUT
sysCLOCK PLL Design and Usage Guide
SEL
CLK0
- Switch low at CLK0 falling edge.
- If SEL is high, output stays low at
on CLK0 rising edge.
SEL Rising edge:
- Wait for CLK0 falling edge,
- Switch output at CLK1 falling edge
DCS MODE = LOW_LOW
latch output & remain low
LatticeECP/EC and LatticeXP