DSPIC30F6010A MICROCHIP [Microchip Technology], DSPIC30F6010A Datasheet - Page 42
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DSPIC30F6010A
Manufacturer Part Number
DSPIC30F6010A
Description
High-Performance, 16-bit Digital Signal Controllers
Manufacturer
MICROCHIP [Microchip Technology]
Datasheet
1.DSPIC30F6010A.pdf
(236 pages)
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dsPIC30F6010A/6015
5.1
The user-assignable Interrupt Priority bits (IP<2:0>)
for each individual interrupt source are located in the
Least Significant 3 bits of each nibble within the IPCx
register(s). Bit 3 of each nibble is not used and is read
as a ‘0’. These bits define the priority level assigned
to a particular interrupt by the user.
Since more than one interrupt request source may be
assigned to a specific user-assigned priority level, a
means is provided to assign priority within a given level.
This method is called “Natural Order Priority”.
Natural Order Priority is determined by the position of
an interrupt in the vector table, and only affects
interrupt operation when multiple interrupts with the
same user-assigned priority become pending at the
same time.
Table 5-1
sources for the dsPIC DSC devices and their associated
vector numbers.
The ability for the user to assign every interrupt to one
of seven priority levels means that the user can assign
a very high overall priority level to an interrupt with a
low natural order priority.
DS70150E-page 42
Note:
Note 1: The Natural Order Priority scheme has 0
2: The Natural Order Priority number is the
Interrupt Priority
lists the interrupt numbers and interrupt
The user-assignable priority levels start at
0, as the lowest priority and level 7, as the
highest priority.
as the highest priority and 53 as the
lowest priority.
same as the INT number.
TABLE 5-1:
Number
45-53
INT
10
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
11
0
1
2
3
4
5
6
7
8
9
Number
Vector
53-61
Highest Natural Order Priority
Lowest Natural Order Priority
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
8
9
INTERRUPT VECTOR TABLE
INT0 – External Interrupt 0
IC1 – Input Capture 1
OC1 – Output Compare 1
T1 – Timer1
IC2 – Input Capture 2
OC2 – Output Compare 2
T2 – Timer2
T3 – Timer3
SPI1
U1RX – UART1 Receiver
U1TX – UART1 Transmitter
ADC – ADC Convert Done
SI2C – I
MI2C – I
Input Change Interrupt
INT1 – External Interrupt 1
IC7 – Input Capture 7
IC8 – Input Capture 8
OC3 – Output Compare 3
OC4 – Output Compare 4
T4 – Timer4
T5 – Timer5
INT2 – External Interrupt 2
U2RX – UART2 Receiver
U2TX – UART2 Transmitter
SPI2
C1 – Combined IRQ for CAN1
IC3 – Input Capture 3
IC4 – Input Capture 4
IC5 – Input Capture 5
IC6 – Input Capture 6
OC5 – Output Compare 5
OC6 – Output Compare 6
OC7 – Output Compare 7
OC8 – Output Compare 8
INT3 – External Interrupt 3
INT4 - External Interrupt 4
C2 – Combined IRQ for CAN2
PWM – PWM Period Match
QEI – QEI Interrupt
Reserved
Reserved
FLTA – PWM Fault A
FLTB – PWM Fault B
Reserved
NVM - NVM Write Complete
© 2011 Microchip Technology Inc.
2
Interrupt Source
2
C™ Slave Interrupt
C Master Interrupt