ARM Cortex-A8 Interrupts
6.3
ARM Cortex-A8 Interrupts
Table 6-1. ARM Cortex-A8 Interrupts
Int Number
Acronym/name
Source
Signal Name
0
EMUINT
MPU Subsystem Internal
Emulation interrupt
(EMUICINTR)
1
COMMTX
MPU Subsystem Internal
CortexA8 COMMTX
2
COMMRX
MPU Subsystem Internal
CortexA8 COMMRX
3
BENCH
MPU Subsystem Internal
CortexA8 NPMUIRQ
4
ELM_IRQ
ELM
Sinterrupt (Error location
process completion)
5
Reserved
6
Reserved
7
NMI
External Pin (active low)
(1)
nmi_int
8
Reserved
9
L3DEBUG
L3
l3_FlagMux_top_FlagOut1
10
L3APPINT
L3
l3_FlagMux_top_FlagOut0
11
PRCMINT
PRCM
irq_mpu
12
EDMACOMPINT
TPCC (EDMA)
tpcc_int_pend_po0
13
EDMAMPERR
TPCC (EDMA)
tpcc_mpint_pend_po
14
EDMAERRINT
TPCC (EDMA)
tpcc_errint_pend_po
15
Reserved
16
ADC_TSC_GENINT
ADC_TSC (Touchscreen
gen_intr_pend
Controller)
17
USBSSINT
USBSS
usbss_intr_pend
18
USBINT0
USBSS
usb0_intr_pend
19
USBINT1
USBSS
usb1_intr_pend
20
PRU_ICSS_EVTOUT0
pr1_host[0] output/events
pr1_host_intr0_intr_pend
exported from PRU-ICSS
(2)
21
PRU_ICSS_EVTOUT1
pr1_host[1] output/events
pr1_host_intr1_intr_pend
exported from PRU-ICSS
(2)
22
PRU_ICSS_EVTOUT2
pr1_host[2] output/events
pr1_host_intr2_intr_pend
exported from PRU-ICSS
(2)
23
PRU_ICSS_EVTOUT3
pr1_host[3] output/events
pr1_host_intr3_intr_pend
exported from PRU-ICSS
(2)
24
PRU_ICSS_EVTOUT4
pr1_host[4] output/events
pr1_host_intr4_intr_pend
exported from PRU-ICSS
(2)
25
PRU_ICSS_EVTOUT5
pr1_host[5] output/events
pr1_host_intr5_intr_pend
exported from PRU-ICSS
(2)
26
PRU_ICSS_EVTOUT6
pr1_host[6] output/events
pr1_host_intr6_intr_pend
exported from PRU-ICSS
(2)
27
PRU_ICSS_EVTOUT7
pr1_host[7] output/events
pr1_host_intr7_intr_pend
exported from PRU-ICSS
(2)
28
MMCSD1INT
MMCSD1
SINTERRUPTN
29
MMCSD2INT
MMCSD2
SINTERRUPTN
30
I2C2INT
I2C2
POINTRPEND
31
eCAP0INT
eCAP0 event/interrupt
ecap_intr_intr_pend
32
GPIOINT2A
GPIO 2
POINTRPEND1
33
GPIOINT2B
GPIO 2
POINTRPEND2
34
USBWAKEUP
USBSS
slv0p_Swakeup
35
Reserved
(1)
For differences in operation based on AM335x silicon revisions, see
, Silicon Revision Functional Differences and
Enhancements.
(2)
pr1_host_intr[0:7] corresponds to Host-2 to Host-9 of the PRU-ICSS interrupt controller.
199
SPRUH73H – October 2011 – Revised April 2013
Interrupts
Copyright © 2011–2013, Texas Instruments Incorporated