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ST STM32L4x6 - Page 8

ST STM32L4x6
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Contents RM0351
8/1693 DocID024597 Rev 3
7.4.1 GPIO port mode register (GPIOx_MODER) (x =A..H) . . . . . . . . . . . . . 264
7.4.2 GPIO port output type register (GPIOx_OTYPER) (x = A..H) . . . . . . . 264
7.4.3 GPIO port output speed register (GPIOx_OSPEEDR)
(x = A..H) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 265
7.4.4 GPIO port pull-up/pull-down register (GPIOx_PUPDR)
(x = A..H) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 265
7.4.5 GPIO port input data register (GPIOx_IDR) (x = A..H) . . . . . . . . . . . . 266
7.4.6 GPIO port output data register (GPIOx_ODR) (x = A..H) . . . . . . . . . . 266
7.4.7 GPIO port bit set/reset register (GPIOx_BSRR) (x = A..H) . . . . . . . . . 266
7.4.8 GPIO port configuration lock register (GPIOx_LCKR)
(x = A..H) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 267
7.4.9 GPIO alternate function low register (GPIOx_AFRL)
(x = A..H) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 268
7.4.10 GPIO alternate function high register (GPIOx_AFRH)
(x = A..H) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 269
7.4.11 GPIO port bit reset register (GPIOx_BRR) (x =A..H) . . . . . . . . . . . . . . 269
7.4.12 GPIO port analog switch control register (GPIOx_ASCR)(x = A..H) . . 269
7.4.13 GPIO register map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 271
8 System configuration controller (SYSCFG) . . . . . . . . . . . . . . . . . . . . 273
8.1 SYSCFG main features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 273
8.2 SYSCFG registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 273
8.2.1 SYSCFG memory remap register (SYSCFG_MEMRMP) . . . . . . . . . . 273
8.2.2 SYSCFG configuration register 1 (SYSCFG_CFGR1) . . . . . . . . . . . . 274
8.2.3 SYSCFG external interrupt configuration register 1
(SYSCFG_EXTICR1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 276
8.2.4 SYSCFG external interrupt configuration register 2
(SYSCFG_EXTICR2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 278
8.2.5 SYSCFG external interrupt configuration register 3
(SYSCFG_EXTICR3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 279
8.2.6 SYSCFG external interrupt configuration register 4
(SYSCFG_EXTICR4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 281
8.2.7 SYSCFG SRAM2 control and status register (SYSCFG_SCSR) . . . . 282
8.2.8 SYSCFG configuration register 2 (SYSCFG_CFGR2) . . . . . . . . . . . . 283
8.2.9 SYSCFG SRAM2 write protection register (SYSCFG_SWPR) . . . . . . 283
8.2.10 SYSCFG SRAM2 key register (SYSCFG_SKR) . . . . . . . . . . . . . . . . . 284
8.2.11 SYSCFG register map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 285
9 Peripherals interconnect matrix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 286
9.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 286

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