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PM0056 Datasheet(PDF) 141 Page - STMicroelectronics |
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PM0056 Datasheet(HTML) 141 Page - STMicroelectronics |
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141 / 156 page  DocID15491 Rev 5 141/156 PM0056 Core peripherals 31 3029 28 27 26 25 24 23 22 21 20 19 18 17 16 Reserved USG FAULT ENA BUS FAULT ENA MEM FAULT ENA rw rw rw 15 14 13 12 11 10 9 8 76 54 3 21 0 SV CALL PEND ED BUS FAULT PEND ED MEM FAULT PEND ED USG FAULT PEND ED SYS TICK ACT PEND SV ACT Res. MONIT OR ACT SV CALL ACT Reserved USG FAULT ACT Res. BUS FAULT ACT MEM FAULT ACT rw rw rw rw rw rw rw rw rw rw rw Bits 31:19 Reserved, must be kept cleared Bit 18 USGFAULTENA: Usage fault enable bit, set to 1 to enable(1) Bit 17 BUSFAULTENA: Bus fault enable bit, set to 1 to enable(1) Bit 16 MEMFAULTENA: Memory management fault enable bit, set to 1 to enable(1) Bit 15 SVCALLPENDED: SVC call pending bit, reads as 1 if exception is pending(2) Bit 14 BUSFAULTPENDED: Bus fault exception pending bit, reads as 1 if exception is pending(2) Bit 13 MEMFAULTPENDED: Memory management fault exception pending bit, reads as 1 if exception is pending(2) Bit 12 USGFAULTPENDED: Usage fault exception pending bit, reads as 1 if exception is pending(2) Bit 11 SYSTICKACT: SysTick exception active bit, reads as 1 if exception is active(3) Bit 10 PENDSVACT: PendSV exception active bit, reads as 1 if exception is active Bit 9 Reserved, must be kept cleared Bit 8 MONITORACT: Debug monitor active bit, reads as 1 if Debug monitor is active Bit 7 SVCALLACT: SVC call active bit, reads as 1 if SVC call is active Bits 6:4 Reserved, must be kept cleared Bit 3 USGFAULTACT: Usage fault exception active bit, reads as 1 if exception is active Bit 2 Reserved, must be kept cleared Bit 1 BUSFAULTACT: Bus fault exception active bit, reads as 1 if exception is active Bit 0 MEMFAULTACT: Memory management fault exception active bit, reads as 1 if exception is active 1. Enable bits, set to 1 to enable the exception, or set to 0 to disable the exception. 2. Pending bits, read as 1 if the exception is pending, or as 0 if it is not pending. You can write to these bits to change the pending status of the exceptions. 3. Active bits, read as 1 if the exception is active, or as 0 if it is not active. You can write to these bits to change the active status of the exceptions, but see the Caution in this section. |
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