STM32F407IGH6 datasheet(152/185 Pages) STMICROELECTRONICS

152 / 185 page

Electrical characteristics

STM32F405xx, STM32F407xx

152/185

DocID022152 Rev 4

NAND controller waveforms and timings

Figure 69 through Figure 72 represent synchronous waveforms, and Table 85 and Table 86

provide 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.

In all timing tables, the THCLK is the HCLK clock period.

Table 84. Switching characteristics for PC Card/CF read and write cycles

in I/O space(1)(2)

Symbol

Parameter

Min

Max

Unit

tw(NIOWR)

FSMC_NIOWR low width

8THCLK –1

tv(NIOWR-D)

FSMC_NIOWR low to FSMC_D[15:0] valid

5THCLK– 1

th(NIOWR-D)

FSMC_NIOWR high to FSMC_D[15:0] invalid

8THCLK– 2

td(NCE4_1-NIOWR) FSMC_NCE4_1 low to FSMC_NIOWR valid

5THCLK+ 2.5

th(NCEx-NIOWR) FSMC_NCEx high to FSMC_NIOWR invalid

5THCLK–1.5

td(NIORD-NCEx) FSMC_NCEx low to FSMC_NIORD valid

5THCLK+ 2

th(NCEx-NIORD) FSMC_NCEx high to FSMC_NIORD) valid

5THCLK– 1.5

tw(NIORD)

FSMC_NIORD low width

8THCLK–0.5

tsu(D-NIORD)

FSMC_D[15:0] valid before FSMC_NIORD high

td(NIORD-D)

FSMC_D[15:0] valid after FSMC_NIORD high

1. CL = 30 pF.

2. Based on characterization, not tested in production.

STM32F407IGH6 Datasheet(PDF) 152 Page - STMicroelectronics

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