LFXP20C-4FN256I Lattice, LFXP20C-4FN256I Datasheet - Page 201
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LFXP20C-4FN256I
Manufacturer Part Number
LFXP20C-4FN256I
Description
IC FPGA 19.7KLUTS 188I/O 256-BGA
Manufacturer
Lattice
Datasheet
1.LFXP3C-3T100C.pdf
(397 pages)
Specifications of LFXP20C-4FN256I
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LFXP20C-4FN256I
Manufacturer:
Lattice Semiconductor Corporation
Quantity:
10 000
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Lattice Semiconductor
Figure 9-40. FIFO with Output Registers, End of Data Read Cycle
And finally, if you select the option enable output register with RdEn, it still delays the data out by one clock cycle
(as compared to the non-pipelined FIFO), and the RdEn should be high also during that clock cycle, otherwise the
data takes an extra clock cycle when the RdEn goes true.
Figure 9-41. FIFO with Output Registers and RdEn on Output Registers
Almost Full
Almost
Almost
Empty
Empty
Almost
Reset
Clock
WrEn
RdEn
Reset
Empty
Empty
Clock
WrEn
RdEn
Data
Data
Full
Full
Full
Q
Q
Invalid Data
Data_N-5
Data_1
Data_N-4
Data_2
Invalid Data
Data_N-3
9-36
Invalid Data
Data_3
Data_N-2
LatticeECP/EC and LatticeXP Devices
Data_4
Data_N-1
Data_1
Data_5
Memory Usage Guide
Data_N
Data_2
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