External interrupt configuration register 4 (AFIO_EXTICR4)

Четвертый регистр конфигурации линий внешних прерываний

Смещение (Address offset): 0x14

Reset value: 0x0000

15	14	13	12	11	10	9	8
EXTI15[3:0]				EXTI14[3:0]
rw				rw
0	0	0	0	0	0	0	0

7	6	5	4	3	2	1	0
EXTI13[3:0]				EXTI12[3:0]
rw				rw
0	0	0	0	0	0	0	0

Bits 31:16

Reserved

Must be kept at cleared

Зарезервировано. Должно быть всегда установлено в 0

Bits 15:0

EXTIx[3:0]

EXTI x configuration (x = 12 to 15)

Конфигурация линий внешних прерываний для EXTI x (где x = 12...15)

0000 : порт A - pin x

0001 : порт B - pin x

0010 : порт C - pin x

0011 : порт D - pin x

0100 : порт E - pin x

0101 : порт F - pin x

0110 : порт G - pin x, где x = 12...15

//- stm32F10x.h

/*****************  Bit definition for AFIO_EXTICR4 register  *****************/

#define AFIO_EXTICR4_EXTI12         ((uint16_t)0x000F)            /* EXTI 12 configuration */
#define AFIO_EXTICR4_EXTI13         ((uint16_t)0x00F0)            /* EXTI 13 configuration */
#define AFIO_EXTICR4_EXTI14         ((uint16_t)0x0F00)            /* EXTI 14 configuration */
#define AFIO_EXTICR4_EXTI15         ((uint16_t)0xF000)            /* EXTI 15 configuration */

/* EXTI12 configuration */
#define AFIO_EXTICR4_EXTI12_PA      ((uint16_t)0x0000)            /* PA[12] pin */
#define AFIO_EXTICR4_EXTI12_PB      ((uint16_t)0x0001)            /* PB[12] pin */
#define AFIO_EXTICR4_EXTI12_PC      ((uint16_t)0x0002)            /* PC[12] pin */
#define AFIO_EXTICR4_EXTI12_PD      ((uint16_t)0x0003)            /* PD[12] pin */
#define AFIO_EXTICR4_EXTI12_PE      ((uint16_t)0x0004)            /* PE[12] pin */
#define AFIO_EXTICR4_EXTI12_PF      ((uint16_t)0x0005)            /* PF[12] pin */
#define AFIO_EXTICR4_EXTI12_PG      ((uint16_t)0x0006)            /* PG[12] pin */

/* EXTI13 configuration */
#define AFIO_EXTICR4_EXTI13_PA      ((uint16_t)0x0000)            /* PA[13] pin */
#define AFIO_EXTICR4_EXTI13_PB      ((uint16_t)0x0010)            /* PB[13] pin */
#define AFIO_EXTICR4_EXTI13_PC      ((uint16_t)0x0020)            /* PC[13] pin */
#define AFIO_EXTICR4_EXTI13_PD      ((uint16_t)0x0030)            /* PD[13] pin */
#define AFIO_EXTICR4_EXTI13_PE      ((uint16_t)0x0040)            /* PE[13] pin */
#define AFIO_EXTICR4_EXTI13_PF      ((uint16_t)0x0050)            /* PF[13] pin */
#define AFIO_EXTICR4_EXTI13_PG      ((uint16_t)0x0060)            /* PG[13] pin */

/* EXTI14 configuration */  
#define AFIO_EXTICR4_EXTI14_PA      ((uint16_t)0x0000)            /* PA[14] pin */
#define AFIO_EXTICR4_EXTI14_PB      ((uint16_t)0x0100)            /* PB[14] pin */
#define AFIO_EXTICR4_EXTI14_PC      ((uint16_t)0x0200)            /* PC[14] pin */
#define AFIO_EXTICR4_EXTI14_PD      ((uint16_t)0x0300)            /* PD[14] pin */
#define AFIO_EXTICR4_EXTI14_PE      ((uint16_t)0x0400)            /* PE[14] pin */
#define AFIO_EXTICR4_EXTI14_PF      ((uint16_t)0x0500)            /* PF[14] pin */
#define AFIO_EXTICR4_EXTI14_PG      ((uint16_t)0x0600)            /* PG[14] pin */

/* EXTI15 configuration */
#define AFIO_EXTICR4_EXTI15_PA      ((uint16_t)0x0000)            /* PA[15] pin */
#define AFIO_EXTICR4_EXTI15_PB      ((uint16_t)0x1000)            /* PB[15] pin */
#define AFIO_EXTICR4_EXTI15_PC      ((uint16_t)0x2000)            /* PC[15] pin */
#define AFIO_EXTICR4_EXTI15_PD      ((uint16_t)0x3000)            /* PD[15] pin */
#define AFIO_EXTICR4_EXTI15_PE      ((uint16_t)0x4000)            /* PE[15] pin */
#define AFIO_EXTICR4_EXTI15_PF      ((uint16_t)0x5000)            /* PF[15] pin */
#define AFIO_EXTICR4_EXTI15_PG      ((uint16_t)0x6000)            /* PG[15] pin */