SM320LF2407-EP Datasheet, PDF (86/112 Pages) Texas Instruments – 
DSP CONTROLLERS

SM320LF2407AĆEP
DSP CONTROLLERS
SGUS036B − JULY 2003 − REVISED OCTOBER 2003
external memory interface write timings (continued)
CLKOUT
td(COH−CNTL)
PS, DS, IS
A[0:15]
R/W
td(COH−A)W
td(COH−RWL)
tsu(A)W
th(A)COLW
W/R
WE
D[0:15]
td(COL−SL)
STRB
td(COL−WL)
ten(D)COL
tsu(D)W
td(COL−WH)
td(COL−WL)
th(D)W
ten(D)COL
tsu(D)W
td(COL−SH)
td(COL−SL)
td(COH−CNTH)
td(COH−CNTL)
td(COH−RWH)
td(WRN)
td(COL−WH)
tdis(W-D)
th(D)W
td(COL−SH)
ENA_144
CLKOUT
2H
2H
VIS_OE
NOTE A: VIS_OE will be visible at pin 97 of LF2407A when ENA_144 is low along with BVIS bits (10,9 of WSGR register − FFFFh@I/O) set to
10 or 11. CLKOUT and VIS_OE indicate internal memory write cycles (program/data). During VIS_OE cycles, the external bus will be
driven. CLKOUT is to be used along with VIS_OE for trace capabilities.
Figure 39. Memory Interface Write/Write Timings
86
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