Texas Instruments Hercules TMS570LS04x/03x LaunchPad Evaluation Kit LAUNCHXL-TMS57004 LAUNCHXL-TMS57004 数据表
产品代码
LAUNCHXL-TMS57004
SPNS186A – OCTOBER 2012 – REVISED SEPTEMBER 2013
4.15 Vectored Interrupt Manager
The vectored interrupt manager (VIM) provides hardware assistance for prioritizing and controlling the
many interrupt sources present on this device. Interrupts are caused by events outside of the normal flow
of program execution. Normally, these events require a timely response from the central processing unit
(CPU); therefore, when an interrupt occurs, the CPU switches execution from the normal program flow to
an interrupt service routine (ISR).
many interrupt sources present on this device. Interrupts are caused by events outside of the normal flow
of program execution. Normally, these events require a timely response from the central processing unit
(CPU); therefore, when an interrupt occurs, the CPU switches execution from the normal program flow to
an interrupt service routine (ISR).
4.15.1 VIM Features
The VIM module has the following features:
•
Supports 96 interrupt channels.
–
–
Provides programmable priority and enable for interrupt request lines.
•
Provides a direct hardware dispatch mechanism for fastest IRQ dispatch.
•
Provides two software dispatch mechanisms when the CPU VIC port is not used.
–
–
Index interrupt
–
Register vectored interrupt
•
Parity protected vector interrupt table against soft errors.
4.15.2 Interrupt Request Assignments
Table 4-24. Interrupt Request Assignments
Modules
Interrupt Sources
Default VIM Interrupt
Channel
ESM
ESM High level interrupt (NMI)
0
Reserved
Reserved
1
RTI
RTI compare interrupt 0
2
RTI
RTI compare interrupt 1
3
RTI
RTI compare interrupt 2
4
RTI
RTI compare interrupt 3
5
RTI
RTI overflow interrupt 0
6
RTI
RTI overflow interrupt 1
7
Reserved
Reserved
8
GIO
GIO interrupt A
9
N2HET
N2HET level 0 interrupt
10
HTU
HTU level 0 interrupt
11
MIBSPI1
MIBSPI1 level 0 interrupt
12
LIN
LIN level 0 interrupt
13
MIBADC
MIBADC event group interrupt
14
MIBADC
MIBADC sw group 1 interrupt
15
DCAN1
DCAN1 level 0 interrupt
16
SPI2
SPI2 level 0 interrupt
17
Reserved
Reserved
18
Reserved
Reserved
19
ESM
ESM Low level interrupt
20
SYSTEM
Software interrupt (SSI)
21
CPU
PMU interrupt
22
GIO
GIO interrupt B
23
N2HET
N2HET level 1 interrupt
24
HTU
HTU level 1 interrupt
25
MIBSPI1
MIBSPI1 level 1 interrupt
26
54
System Information and Electrical Specifications
Copyright © 2012–2013, Texas Instruments Incorporated
Product Folder Links: