CD00237391 Datasheet, PDF (133/177 Pages) STMicroelectronics – ARM-based 32-bit MCU, 150DMIPs, up to 1 MB Flash/128+4KB RAM

STM32F20xxx
Electrical characteristics
PC Card/CompactFlash controller waveforms and timings
Figure 62 through Figure 67 represent synchronous waveforms together with Table 78 and
Table 79 provides the corresponding timings. The results shown in this table are obtained
with the following FSMC configuration:
● COM.FSMC_SetupTime = 0x04;
● COM.FSMC_WaitSetupTime = 0x07;
● COM.FSMC_HoldSetupTime = 0x04;
● COM.FSMC_HiZSetupTime = 0x00;
● ATT.FSMC_SetupTime = 0x04;
● ATT.FSMC_WaitSetupTime = 0x07;
● ATT.FSMC_HoldSetupTime = 0x04;
● ATT.FSMC_HiZSetupTime = 0x00;
● IO.FSMC_SetupTime = 0x04;
● IO.FSMC_WaitSetupTime = 0x07;
● IO.FSMC_HoldSetupTime = 0x04;
● IO.FSMC_HiZSetupTime = 0x00;
● TCLRSetupTime = 0;
● TARSetupTime = 0;
In all timing tables, the T_HCLK is the HCLK clock period.
Figure 62. PC Card/CompactFlash controller waveforms for common memory read
access
FSMC_NCE4_2⁽¹⁾
FSMC_NCE4_1
FSMC_A[10:0]
FSMC_NREG
FSMC_NIOWR
FSMC_NIORD
tv(NCEx-A)
td(NREG-NCEx)
td(NIORD-NCEx)
th(NCEx-AI)
th(NCEx-NREG)
th(NCEx-NIORD)
th(NCEx-NIOWR)
FSMC_NWE
td(NCE4_1-NOE)
FSMC_NOE
FSMC_D[15:0]
tw(NOE)
tsu(D-NOE)
1. FSMC_NCE4_2 remains high (inactive during 8-bit access.
th(NOE-D)
ai14895b
Doc ID 15818 Rev 9
133/177