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ST STM32F405 User Manual

ST STM32F405
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RM0090 Rev 18 7/1749
RM0090 Contents
39
7.3.4 RCC clock interrupt register (RCC_CIR) . . . . . . . . . . . . . . . . . . . . . . . 230
7.3.5 RCC AHB1 peripheral reset register (RCC_AHB1RSTR) . . . . . . . . . . 233
7.3.6 RCC AHB2 peripheral reset register (RCC_AHB2RSTR) . . . . . . . . . . 236
7.3.7 RCC AHB3 peripheral reset register (RCC_AHB3RSTR) . . . . . . . . . . 237
7.3.8 RCC APB1 peripheral reset register (RCC_APB1RSTR) . . . . . . . . . . 237
7.3.9 RCC APB2 peripheral reset register (RCC_APB2RSTR) . . . . . . . . . . 240
7.3.10 RCC AHB1 peripheral clock enable register (RCC_AHB1ENR) . . . . . 242
7.3.11 RCC AHB2 peripheral clock enable register (RCC_AHB2ENR) . . . . . 244
7.3.12 RCC AHB3 peripheral clock enable register (RCC_AHB3ENR) . . . . . 245
7.3.13 RCC APB1 peripheral clock enable register
(RCC_APB1ENR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 245
7.3.14 RCC APB2 peripheral clock enable register (RCC_APB2ENR) . . . . . 248
7.3.15 RCC AHB1 peripheral clock enable in low power mode register
(RCC_AHB1LPENR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250
7.3.16 RCC AHB2 peripheral clock enable in low power mode register
(RCC_AHB2LPENR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 252
7.3.17 RCC AHB3 peripheral clock enable in low power mode register
(RCC_AHB3LPENR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253
7.3.18 RCC APB1 peripheral clock enable in low power mode register
(RCC_APB1LPENR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 254
7.3.19 RCC APB2 peripheral clock enabled in low power mode
register (RCC_APB2LPENR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 257
7.3.20 RCC Backup domain control register (RCC_BDCR) . . . . . . . . . . . . . . 259
7.3.21 RCC clock control & status register (RCC_CSR) . . . . . . . . . . . . . . . . 260
7.3.22 RCC spread spectrum clock generation register (RCC_SSCGR) . . . . 262
7.3.23 RCC PLLI2S configuration register (RCC_PLLI2SCFGR) . . . . . . . . . 263
7.3.24 RCC register map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 265
8 General-purpose I/Os (GPIO) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 267
8.1 GPIO introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 267
8.2 GPIO main features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 267
8.3 GPIO functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 267
8.3.1 General-purpose I/O (GPIO) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 269
8.3.2 I/O pin multiplexer and mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 270
8.3.3 I/O port control registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 274
8.3.4 I/O port data registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 274
8.3.5 I/O data bitwise handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 274
8.3.6 GPIO locking mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 274
8.3.7 I/O alternate function input/output . . . . . . . . . . . . . . . . . . . . . . . . . . . . 275

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ST STM32F405 Specifications

General IconGeneral
BrandST
ModelSTM32F405
CategoryComputer Hardware
LanguageEnglish

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