LFECP40 Lattice Semiconductor, LFECP40 Datasheet - Page 30

• Manufacturer Part Number: LFECP40
• Description: (LFEC Series) LatticeECP/EC Family Data Sheet
• Manufacturer: Lattice Semiconductor

Lattice Semiconductor
Figure 2-31. DQS Local Bus.
Figure 2-32. DLL Calibration Bus and DQS/DQS Transition Distribution
Control
Polarity
Control
Delay
DQS
Bus
Bus
Bus
Delay Control Bus
DQS
DQS
CLKI
GSR
DQS
CEI
DLL
DLL
To DDR
Reg.
Polarity Control
Register Block
( 5 Flip Flops)
2-27
PIO
PIO
DQSDEL
Logic
Input
To Sync.
Calibration Bus
from DLL
Reg.
LatticeECP/EC Family Data Sheet
Polarity Control Bus
Buffer
Buffer
sysIO
sysIO
DI
DI
DQS Bus
Datain
Strobe
DDR
DQS
PAD
PAD
Architecture