ST STM32G0 1 Series Reference Manual page 11

RM0444
11.6.3
11.6.4
11.6.5
11.6.6
11.6.7
12 Nested vectored interrupt controller (NVIC) . . . . . . . . . . . . . . . . . . . . 314
12.1 Main features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 314
12.2 SysTick calibration value register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 314
12.3 Interrupt and exception vectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 314
13 Extended interrupt and event controller (EXTI) . . . . . . . . . . . . . . . . . 317
13.1 EXTI main features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 317
13.2 EXTI block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 317
13.2.1
13.3 EXTI functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 319
13.3.1
13.3.2
13.3.3
13.4 EXTI functional behavior . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 323
13.5 EXTI registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 324
13.5.1
13.5.2
13.5.3
13.5.4
13.5.5
13.5.6
13.5.7
13.5.8
13.5.9
13.5.10 EXTI falling edge pending register 2 (EXTI_FPR2) . . . . . . . . . . . . . . . 330
13.5.11 EXTI external interrupt selection register (EXTI_EXTICRx) . . . . . . . . 330
13.5.12 EXTI CPU wakeup with interrupt mask register (EXTI_IMR1) . . . . . . . 332
DMAMUX request line multiplexer interrupt clear flag register
(DMAMUX_CFR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 309
DMAMUX request generator channel x configuration register
(DMAMUX_RGxCR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 310
DMAMUX request generator interrupt status register
(DMAMUX_RGSR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 311
DMAMUX request generator interrupt clear flag register
(DMAMUX_RGCFR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 311
DMAMUX register map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 312
EXTI connections between peripherals and CPU . . . . . . . . . . . . . . . . 319
EXTI configurable event input wakeup . . . . . . . . . . . . . . . . . . . . . . . . 320
EXTI direct event input wakeup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 321
EXTI mux . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 321
EXTI rising trigger selection register (EXTI_RTSR1) . . . . . . . . . . . . . . 324
EXTI falling trigger selection register 1 (EXTI_FTSR1) . . . . . . . . . . . . 325
EXTI software interrupt event register 1 (EXTI_SWIER1) . . . . . . . . . . 325
EXTI rising edge pending register 1 (EXTI_RPR1) . . . . . . . . . . . . . . . 326
EXTI falling edge pending register 1 (EXTI_FPR1) . . . . . . . . . . . . . . . 327
EXTI rising trigger selection register 2 (EXTI_RTSR2) . . . . . . . . . . . . 328
EXTI falling trigger selection register 2 (EXTI_FTSR2) . . . . . . . . . . . . 328
EXTI software interrupt event register 2 (EXTI_SWIER2) . . . . . . . . . . 329
EXTI rising edge pending register 2 (EXTI_RPR2) . . . . . . . . . . . . . . . 329
RM0444 Rev 5
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