Datasheet

Electrical characteristics STM32F427xx STM32F429xx
182/239 DocID024030 Rev 10
PC Card/CompactFlash controller waveforms and timings
Figure 63 through Figure 68 represent synchronous waveforms, and Table 98 and Table 99
provide the corresponding timings. The results shown in this table are obtained with the
following FMC configuration:
• COM.FMC_SetupTime = 0x04;
• COM.FMC_WaitSetupTime = 0x07;
• COM.FMC_HoldSetupTime = 0x04;
• COM.FMC_HiZSetupTime = 0x00;
• ATT.FMC_SetupTime = 0x04;
• ATT.FMC_WaitSetupTime = 0x07;
• ATT.FMC_HoldSetupTime = 0x04;
• ATT.FMC_HiZSetupTime = 0x00;
• IO.FMC_SetupTime = 0x04;
• IO.FMC_WaitSetupTime = 0x07;
• IO.FMC_HoldSetupTime = 0x04;
• IO.FMC_HiZSetupTime = 0x00;
• TCLRSetupTime = 0;
• TARSetupTime = 0.
In all timing tables, the
T
HCLK
is the HCLK clock period.
t
d(CLKH-AIV)
FMC_CLK high to FMC_Ax invalid (x=16…25) 0 - ns
t
d(CLKL-NWEL)
FMC_CLK low to FMC_NWE low - 0 ns
t
d(CLKH-NWEH)
FMC_CLK high to FMC_NWE high T
HCLK
−0.5 - ns
t
d(CLKL-Data)
FMC_D[15:0] valid data after FMC_CLK low - 2.5 ns
t
d(CLKL-NBLL)
FMC_CLK low to FMC_NBL low 0 - ns
t
d(CLKH-NBLH)
FMC_CLK high to FMC_NBL high T
HCLK
−0.5 - ns
t
su(NWAIT-CLKH)
FMC_NWAIT valid before FMC_CLK high 4
t
h(CLKH-NWAIT)
FMC_NWAIT valid after FMC_CLK high 0
1. C
L
= 30 pF.
2. Guaranteed by characterization results.
Table 97. Synchronous non-multiplexed PSRAM write timings
(1)(2)
(continued)
Symbol Parameter Min Max Unit
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