STM32F103xC, STM32F103xD, STM32F103xE
Electrical characteristics
Table 39. Switching characteristics for PC Card/CF read and write cycles(1)(2) (continued)
Symbol
Parameter
Min
Max
Unit
tw(NIOWR)
FSMC_NIOWR low width
tv(NIOWR-D)
FSMC_NIOWR low to FSMC_D[15:0] valid
th(NIOWR-D)
FSMC_NIOWR high to FSMC_D[15:0] invalid
td(NCE4_1-NIOWR) FSMC_NCE4_1 low to FSMC_NIOWR valid
th(NCEx-NIOWR) FSMC_NCEx high to FSMC_NIOWR invalid
th(NCE4_1-NIOWR) FSMC_NCE4_1 high to FSMC_NIOWR invalid
td(NIORD-NCEx) FSMC_NCEx low to FSMC_NIORD valid FSMC_NCE4_1
td(NIORD-NCE4_1) low to FSMC_NIORD valid
th(NCEx-NIORD) FSMC_NCEx high to FSMC_NIORD invalid
th(NCE4_1-NIORD) FSMC_NCE4_1 high to FSMC_NIORD invalid
tsu(D-NIORD)
FSMC_D[15:0] valid before FSMC_NIORD high
td(NIORD-D)
FSMC_D[15:0] valid after FSMC_NIORD high
tw(NIORD)
FSMC_NIORD low width
1. CL = 15 pF.
2. Based on characterization, not tested in production.
8THCLK + 3
11THCLK
5THCLK – 5
5THCLK – 5
4.5
9
8THCLK + 2
ns
5THCLK +1 ns
ns
5THCLK+3ns ns
ns
5THCLK + 2.5 ns
ns
ns
ns
ns
NAND controller waveforms and timings
Figure 38 through Figure 41 represent synchronous waveforms and Table 40 provides the
corresponding timings. The results shown in this table are obtained with the following FSMC
configuration:
● COM.FSMC_SetupTime = 0x01;
● COM.FSMC_WaitSetupTime = 0x03;
● COM.FSMC_HoldSetupTime = 0x02;
● COM.FSMC_HiZSetupTime = 0x01;
● ATT.FSMC_SetupTime = 0x01;
● ATT.FSMC_WaitSetupTime = 0x03;
● ATT.FSMC_HoldSetupTime = 0x02;
● ATT.FSMC_HiZSetupTime = 0x01;
● Bank = FSMC_Bank_NAND;
● MemoryDataWidth = FSMC_MemoryDataWidth_16b;
● ECC = FSMC_ECC_Enable;
● ECCPageSize = FSMC_ECCPageSize_512Bytes;
● TCLRSetupTime = 0;
● TARSetupTime = 0;
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