LFEC LATTICE [Lattice Semiconductor], LFEC Datasheet - Page 55

• Manufacturer Part Number: LFEC
• Description: LatticeECP/EC Family Data Sheet
• Manufacturer: LATTICE [Lattice Semiconductor]

Lattice Semiconductor
Figure 3-11. Read Before Write (SP Read/Write on Port A, Input Registers Only)
Note: Input data and address are registered at the positive edge of the clock and output data appears after the positive edge of the clock.
Figure 3-12. Write Through (SP Read/Write On Port A, Input Registers Only)
Note: Input data and address are registered at the positive edge of the clock and output data appears after the positive edge of the clock.
CLKA
WEA
DOA
CSA
ADA
CLKA
DIA
WEA
DOA
CSA
ADA
DIA
Data from Prev Read
or Write
t
SU
t
SU
D0
A0
A0
D0
t
H
t
t
H
ACCESS
t
ACCESS
old A0 Data
D1
A1
A1
D1
D0
t
t
ACCESS
ACCESS
3-19
old A1 Data
D2
D2
D1
A0
t
ACCESS
t
ACCESS
Three consecutive writes to A0
DC and Switching Characteristics
LatticeECP/EC Family Data Sheet
D3
D2
D3
D0
A1
t
A0
ACCESS
D3
D4
D1
D1
A0
t
ACCESS
t
ACCESS
D4
D2