RM0312 datasheet(54/275 Pages) STMICROELECTRONICS

54 / 275 page

Interrupt controller (ITC)

RM0312

54/275

DocID022352 Rev 3

5.9.7

External interrupt status register 2 (EXTI_SR2)

Address offset: 0x04

Reset value: 0x00

5.9.8

External interrupt port select register (EXTI_CONF)

Address offset: 0x05

Reset value: 0x00

654

3210

Reserved

PDF

PBF

rc_w1

Bits 7:2 Reserved

Bit 1 PDF: Port D external interrupt flag

This bit is set by hardware when an interrupt event occurs on the corresponding pin. It is cleared by

writing a ‘1’ by software.

0: No interrupt

1: External interrupt pending

Bit 0 PBF: Port B external interrupt flag

This bit is set by hardware when an interrupt event occurs on the corresponding pin.It is cleared by

writing a ‘1’ by software.

0: No interrupt

1: External interrupt pending

654

3210

Reserved

PDHIS

PDLIS

PBHIS

PBLIS

Bits 7:4 Reserved

Bit 3 PDHIS: Port D[7:4] external interrupt select

It selects pins PD[7:4] for EXTID interrupt.

0: PD[7:4] are used for EXTI7-EXTI4 interrupt generation

1: PD[7:4] are used for EXTID interrupt generation

Bit 2 PDLIS: Port D[3:0] external interrupt select

It selects pins PD[3:0] for EXTID interrupt.

0: PD[3:0] are used for EXTI3-EXTI0 interrupt generation

1: PD[3:0] are used for EXTID interrupt generation

Bit 1 PBHIS: Port B[7:4] external interrupt select

It selects pins PB[7:4] for EXTIB interrupt.

0: PB[7:4] are used for EXTI7-EXTI4 interrupt generation

1: PB[7:4] are used for EXTIB interrupt generation

Bit 0 PBLIS: Port B[3:0] external interrupt select

It selects pins PB[3:0] for EXTIB interrupt.

0: PB[3:0] are used for EXTI3-EXTI0 interrupt generation

1: PB[3:0] are used for EXTIB interrupt generation

RM0312 Datasheet(PDF) 54 Page - STMicroelectronics

RM0312 Datasheet(HTML) 54 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL