LFXP15 Lattice Semiconductor, LFXP15 Datasheet - Page 24

• Manufacturer Part Number: LFXP15
• Description: LatticeXP Family
• Manufacturer: Lattice Semiconductor

Lattice Semiconductor
Figure 2-26. DQS Local Bus
Figure 2-27. DLL Calibration Bus and DQS/DQS Transition Distribution
Control
Polarity
Control
Delay
Bus
DQS
Bus
Bus
Delay Control Bus
DQS
DQS
CLKI
GSR
DQS
CEI
DLL
DLL
To DDR
Reg.
2-21
Polarity Control
Register Block
( 5 Flip Flops)
PIO
PIO
DQSDEL
Logic
Input
To Sync.
Calibration Bus
from DLL
Reg.
Polarity Control Signal Bus
LatticeXP Family Data Sheet
Buffer
Buffer
sysIO
sysIO
DQS Signal Bus
DI
DI
Datain
Strobe
DDR
DQS
PAD
PAD
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Architecture