DSPIC30F3014-30I/P Microchip Technology Inc., DSPIC30F3014-30I/P Datasheet - Page 58

• Manufacturer Part Number: DSPIC30F3014-30I/P
• Description: DSP, 16-Bit, 24 KB Flash, 2KB RAM, 30 I/O, PDIP-40
• Manufacturer: Microchip Technology Inc.
• Type: DSPr

Specifications of DSPIC30F3014-30I/P

• A/d Inputs: 13-Channels, 12-Bit
• Cpu Speed: 30 MIPS
• Eeprom Memory: 1K Bytes
• Input Output: 30
• Interface: CAN, I2C, SPI, UART/USART
• Ios: 30
• Memory Type: Flash
• Number Of Bits: 16
• Package Type: 40-pin PDIP
• Programmable Memory: 24K Bytes
• Ram Size: 2K Bytes
• Timers: 3-16-bit, 1-32-bit
• Voltage, Range: 2.5-5.5
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

dsPIC30F3014/4013
8.1
The user assignable interrupt priority (IP<2:0>) bits for
each individual interrupt source are located in the LS
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.
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 8-1 and Table 8-2 list the interrupt numbers,
corresponding interrupt sources and associated vector
numbers for the dsPIC30F3014 and dsPIC30F4013
devices, respectively.
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. For example, the PLVD (Low-
Voltage Detect) can be given a priority of 7. The INT0
(External Interrupt 0) may be assigned to priority level
1, thus giving it a very low effective priority.
DS70138E-page 56
Note:
Note 1: The natural order priority scheme has 0
2: The natural order priority number is the
Interrupt Priority
The user selectable 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 8-1:
Highest Natural Order Priority
Lowest Natural Order Priority
Number
17-22
28-41
43-53
INT
10
11
12
13
14
15
16
23
24
25
26
27
42
0
1
2
3
4
5
6
7
8
9
Number
Vector
25-30
36-49
51-61
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
31
32
33
34
35
50
8
9
dsPIC30F3014 INTERRUPT
VECTOR TABLE
INT0 – External Interrupt 0
IC1 – Input Capture 1
OC1 – Output Compare 1
T1 – Timer 1
IC2 – Input Capture 2
OC2 – Output Compare 2
T2 – Timer 2
T3 – Timer 3
SPI1
U1RX – UART1 Receiver
U1TX – UART1 Transmitter
ADC – ADC Convert Done
NVM – NVM Write Complete
SI2C – I
MI2C – I
Input Change Interrupt
INT1 – External Interrupt 1
Reserved
INT2 – External Interrupt 2
U2RX – UART2 Receiver
U2TX – UART2 Transmitter
Reserved
C1 – Combined IRQ for CAN1
Reserved
LVD – Low-Voltage Detect
Reserved
© 2007 Microchip Technology Inc.
2
Interrupt Source
2
C™ Slave Interrupt
C Master Interrupt