Programming Model
MOTOROLA
Interrupt Controller (AITC)
10-15
10.4.6.2 Interrupt Type Register Low
10.4.7 Normal Interrupt Priority Level Registers
The normal interrupt priority level registers (NIPRIORITY7, NIPRIORITY6, NIPRIORITY5,
NIPRIORITY4, NIPRIORITY3, NIPRIORITY2, NIPRIORITY1, and NIPRIORITY0) provide a software
controllable prioritization of normal interrupts. Normal interrupts with a higher priority level preempt
normal interrupts with a lower priority. The reset state of these registers forces all normal interrupts to the
lowest priority level.
When a level 0 normal interrupt and a level 1 normal interrupt are asserted at the same time, the level 1
normal interrupt is selected assuming that NIMASK has not disabled level 1 normal interrupts. When two
level 1 normal interrupts are asserted at the same time, the level 1 normal interrupt with the highest source
number is selected, also assuming that NIMASK has not disabled level 1 normal interrupts.
These registers are located on the ARM920T processor’s native bus, are accessible in 1 cycle, and can be
accessed only in supervisor mode. These registers must be accessed only on word (32-bit) boundaries.
INTTYPEL
Interrupt Type Register Low
Addr
0x0022301C
BIT
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
INTTYPE [31:16]
TYPE
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
RESET
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0x0000
BIT
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
INTTYPE [15:0]
TYPE
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
RESET
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0x0000
Table 10-11. Interrupt Type Register Low Description
Name
Description
Settings
INTTYPE
Bits 31–0
Interrupt Type
—Controls whether the individual interrupt
sources request a normal interrupt or a fast interrupt.
When a bit is set in INTTYPE and the corresponding interrupt
source is asserted, the interrupt controller asserts a fast
interrupt request.
0 = Interrupt source generates a
normal interrupt (nIRQ)
1 = Interrupt source generates a
fast interrupt (nFIQ)
Summary of Contents for DragonBall MC9328MX1
Page 68: ...1 12 MC9328MX1 Reference Manual MOTOROLA Introduction ...
Page 86: ...2 18 MC9328MX1 Reference Manual MOTOROLA Signal Descriptions and Pin Assignments ...
Page 116: ...3 30 MC9328MX1 Reference Manual MOTOROLA Memory Map ...
Page 126: ...4 10 MC9328MX1 Reference Manual MOTOROLA ARM920T Processor ...
Page 160: ...8 8 MC9328MX1 Reference Manual MOTOROLA System Control ...
Page 272: ...13 32 MC9328MX1 Reference Manual MOTOROLA DMA Controller ...
Page 281: ...Programming Model MOTOROLA Watchdog Timer Module 14 9 ...
Page 282: ...14 10 MC9328MX1 Reference Manual MOTOROLA Watchdog Timer Module ...
Page 300: ...15 18 MC9328MX1 Reference Manual MOTOROLA Analog Signal Processor ASP ...
Page 438: ...18 16 MC9328MX1 Reference Manual MOTOROLA Serial Peripheral Interface Modules SPI 1 and SPI 2 ...
Page 478: ...19 40 MC9328MX1 Reference Manual MOTOROLA LCD Controller ...
Page 574: ...21 32 MC9328MX1 Reference Manual MOTOROLA Memory Stick Host Controller MSHC Module ...
Page 598: ...23 16 MC9328MX1 Reference Manual MOTOROLA Real Time Clock RTC ...
Page 670: ...24 72 MC9328MX1 Reference Manual MOTOROLA SDRAM Memory Controller ...
Page 726: ...25 56 MC9328MX1 Reference Manual MOTOROLA SmartCard Interface Module SIM ...
Page 736: ...26 10 MC9328MX1 Reference Manual MOTOROLA General Purpose Timers ...
Page 854: ...29 18 MC9328MX1 Reference Manual MOTOROLA I2C Module ...
Page 900: ...30 46 MC9328MX1 Reference Manual MOTOROLA Synchronous Serial Interface SSI ...
Page 942: ...32 26 MC9328MX1 Reference Manual MOTOROLA GPIO Module and I O Multiplexer IOMUX ...