stm32 /stm32n6 /STM32N655 /FMC1 /FMC_CFGR

Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text

Interpret as FMC_CFGR

31 2827 2423 2019 1615 1211 87 43 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 (B_0x0)CLKDIV0 (B_0x0)CCLKEN 0 (B_0x0)BMAP0 0 (B_0x0)BMAP1 0 (B_0x0)FMCEN

BMAP0=B_0x0, FMCEN=B_0x0, CCLKEN=B_0x0, CLKDIV=B_0x0, BMAP1=B_0x0

Description

FMC common configuration register

Fields

CLKDIV

Clock divide ratio (for FMC_CLK signal)

0 (B_0x0): FMC_CLK period= 1x fmc_ker_ck period

1 (B_0x1): FMC_CLK period = 2 fmc_ker_ck periods

2 (B_0x2): FMC_CLK period = 3 fmc_ker_ck periods

15 (B_0xF): FMC_CLK period = 16 fmc_ker_ck periods (default value after reset)

CCLKEN

Continuous clock enable

0 (B_0x0): The FMC_CLK is only generated during the synchronous memory access (read/write transaction). The FMC_CLK clock ratio is defined by the programmed CLKDIV value in the FMC_BCRx register (default after reset).

1 (B_0x1): The FMC_CLK is generated continuously during asynchronous and synchronous access.

BMAP0

FMC memory region mapping

0 (B_0x0): Default mapping (refer to Table 132)

1 (B_0x1): Devices are remapped (refer to Table 133)

BMAP1

FMC memory region mapping

0 (B_0x0): Default mapping (refer to Table 132)

1 (B_0x1): Devices are remapped (refer to Table 133)

FMCEN

FMC controller enable

0 (B_0x0): FMC controller disabled

1 (B_0x1): FMC controller enabled

Links

()