M054LAN Datasheet, PDF (23/64 Pages) Nuvotem Talema – ARM Cortex™-M0 32-BIT MICROCONTROLLER

64M052/M054 Data Sheet
6.2.5.1 Exception Model and System Interrupt Map
The Table 6–1 lists the exception model supported by NuMicro M051^™ series. Software can set
four levels of priority on some of these exceptions as well as on all interrupts. The highest user-
configurable priority is denoted as “0” and the lowest priority is denoted as “3”. The default priority
of all the user-configurable interrupts is “0”. Note that priority “0” is treated as the fourth priority on
the system, after three system exceptions “Reset”, “NMI” and “Hard Fault”.
Exception
Number
1-15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
Vector
Address
Interrupt
Number
(Bit in
Interrupt
Registers)
Interrupt
Name
Source
IP
Interrupt description
Power
Down
Wakeup
0x00-0x3C
-
-
-
System exceptions
0x40
0
BOD_OUT
Brownou Brownout low voltage detected
t
interrupt
Yes
0x44
1
WDT_INT
WDT
Watch Dog Timer interrupt
Yes
0x48
2
EINT0
GPIO
External signal interrupt from P3.2
pin
Yes
0x4C
3
EINT1
GPIO
External signal interrupt from P3.3
pin
Yes
0x50
4
GP01_INT
GPIO
External signal interrupt from P0[7:0]
/ P1[7:0]
Yes
0x54
External interrupt from
5
GP234_INT GPIO P2[7:0]/P3[7:0]/P4[7:0], except P32 Yes
and P33
0x58
6
PWMA_INT
PWM0~3
PWM0, PWM1, PWM2 and PWM3
interrupt
No
0x5C
7
PWMB_INT
PWM4~7
PWM4, PWM5, PWM6 and PWM7
interrupt
No
0x60
8
TMR0_INT
TMR0 Timer 0 interrupt
No
0x64
9
TMR1_INT
TMR1 Timer 1 interrupt
No
0x68
10
TMR2_INT
TMR2 Timer 2 interrupt
No
0x6C
11
TMR3_INT
TMR3 Timer 3 interrupt
No
0x70
12
UART0_INT UART0 UART0 interrupt
Yes
0x74
13
UART1_INT UART1 UART1 interrupt
Yes
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Publication Release Date: Mar 15, 2011
Revision V1.0