ep1s25 Altera Corporation, ep1s25 Datasheet - Page 197
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ep1s25
Manufacturer Part Number
ep1s25
Description
Stratix Device Family Data Sheet
Manufacturer
Altera Corporation
Datasheet
1.EP1S25.pdf
(276 pages)
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Figure 4–3. Dual-Port RAM Timing Microparameter Waveform
Altera Corporation
January 2006
unreg_data-out
reg_data-out
wraddress
rdaddress
rdclock
data-in
wrclock
wren
rden
doutn-2
an-1
din-1
t
t
DATASU
WERESU
doutn-1
bn
t
DATAH
an
din
Figure 4–3
and M-RAM timing parameters shown in
Internal timing parameters are specified on a speed grade basis
independent of device density.
internal timing microparameters for LEs, IOEs, TriMatrix memory
structures, DSP blocks, and MultiTrack interconnects.
t
t
t
R4
R8
R24
Table 4–43. Routing Delay Internal Timing Microparameter
Descriptions (Part 1 of 2)
Symbol
t
doutn-1
WEREH
doutn
a0
b0
shows the TriMatrix memory waveforms for the M512, M4K,
Delay for an R4 line with average loading; covers a distance of four
LAB columns.
Delay for an R8 line with average loading; covers a distance of eight
LAB columns.
Delay for an R24 line with average loading; covers a distance of 24
LAB columns.
t
t
DATACO1
WEREH
t
DATACO2
a1
t
RC
doutn
dout0
a2
b1
Tables 4–44
Parameter
t
t
WADDRSU
Stratix Device Handbook, Volume 1
a3
WERESU
dout0
Tables 4–40
DC & Switching Characteristics
through
din4
a4
b2
4–50
through 4–42.
t
WADDRH
show the
din5
a5
b3
din6
a6
4–27