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ManualsBrandsST ManualsEmbedded Processors & ControllersMicrocontroller 32bit 2MB LQFP
181182183184185186187188189190
Electrical characteristics STM32F427xx STM32F429xx
186/239 DocID024030 Rev 10
Figure 68. PC Card/CompactFlash controller waveforms for I/O space write access
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Table 98. Switching characteristics for PC Card/CF read and write cycles
in attribute/common space
(1)(2)
Symbol Parameter Min Max Unit
t
v(NCEx-A)
FMC_Ncex low to FMC_Ay valid - 0 ns
t
h(NCEx_AI)
FMC_NCEx high to FMC_Ax invalid 0 - ns
t
d(NREG-NCEx)
FMC_NCEx low to FMC_NREG valid - 1 ns
t
h(NCEx-NREG)
FMC_NCEx high to FMC_NREG invalid T
HCLK
− 2-ns
t
d(NCEx-NWE)
FMC_NCEx low to FMC_NWE low - 5T
HCLK
ns
t
w(NWE)
FMC_NWE low width 8T
HCLK
− 0.5 8T
HCLK
+0.5 ns
t
d(NWE_NCEx)
FMC_NWE high to FMC_NCEx high 5T
HCLK
+1 - ns
t
V(NWE-D)
FMC_NWE low to FMC_D[15:0] valid - 0 ns
t
h(NWE-D)
FMC_NWE high to FMC_D[15:0] invalid 9T
HCLK
− 0.5 - ns
t
d(D-NWE)
FMC_D[15:0] valid before FMC_NWE high 13T
HCLK
− 3ns
t
d(NCEx-NOE)
FMC_NCEx low to FMC_NOE low - 5T
HCLK
ns
t
w(NOE)
FMC_NOE low width 8 T
HCLK
− 0.5 8 T
HCLK
+0.5 ns
t
d(NOE_NCEx)
FMC_NOE high to FMC_NCEx high 5T
HCLK
− 1-ns
t
su (D-NOE)
FMC_D[15:0] valid data before FMC_NOE high T
HCLK
-ns
t
h(NOE-D)
FMC_NOE high to FMC_D[15:0] invalid 0 - ns
1. C
L
= 30 pF.
2. Guaranteed by characterization results.
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