Software Interrupt Event Register (Exti_Swier) - STMicroelectronics STM32F405 Reference Manual

Interrupts and events
12.3.5

Software interrupt event register (EXTI_SWIER)

Address offset: 0x10
Reset value: 0x0000 0000
31 30 29
15 14 13
SWIER SWIER SWIER SWIER
15 14 13
rw rw rw
Bits 31:23 Reserved, must be kept at reset value.
Bits 22:0 SWIERx: Software Interrupt on line x
12.3.6 Pending register (EXTI_PR)
Address offset: 0x14
Reset value: undefined
31 30 29
15 14 13
PR15 PR14 PR13 PR12
rc_w1 rc_w1 rc_w1 rc_w1
Bits 31:23 Reserved, must be kept at reset value.
Bits 22:0 PRx: Pending bit
388/1731
28 27 26 25
Reserved
12 11 10 9
SWIER SWIER SWIER
12 11 10 9
rw rw rw rw
If interrupt are enabled on line x in the EXTI_IMR register, writing '1' to SWIERx bit when it is
set at '0' sets the corresponding pending bit in the EXTI_PR register, thus resulting in an
interrupt request generation.
This bit is cleared by clearing the corresponding bit in EXTI_PR (by writing a 1 to the bit).
28 27 26 25
Reserved
12 11 10 9
PR11 PR10 PR9
rc_w1 rc_w1 rc_w1
0: No trigger request occurred
1: selected trigger request occurred
This bit is set when the selected edge event arrives on the external interrupt line.
This bit is cleared by programming it to '1'.
DocID018909 Rev 11
24 23 22 21
SWIER SWIER
22 21
rw rw
8 7 6
SWIER SWIER SWIER SWIER
8 7 6
rw rw rw rw
24 23 22 21
PR22 PR21
rc_w1 rc_w1
8 7 6
PR8 PR7 PR6 PR5
rc_w1 rc_w1 rc_w1 rc_w1
20 19 18
SWIER SWIER SWIER
20 19 18
rw rw rw
5 4 3 2
SWIER SWIER SWIER
5 4 3 2
rw rw rw
20 19 18
PR20 PR19 PR18
rc_w1 rc_w1 rc_w1
5 4 3 2
PR4 PR3 PR2
rc_w1 rc_w1 rc_w1
RM0090
17 16
SWIER SWIER
17 16
rw rw
1 0
SWIER SWIER
1 0
rw rw
17 16
PR17 PR16
rc_w1 rc_w1
1 0
PR1 PR0
rc_w1 rc_w1