Interrupt Type Register High And Interrupt Type Register Low; Table 10-10 Interrupt Type Register High Description - Motorola DragonBall MC9328MX1 Reference Manual

Interrupt Controller (AITC)

10.4.6 Interrupt Type Register High and Interrupt Type Register Low

The Interrupt Type Register High (INTTYPEH) and the Interrupt Type Register Low (INTTYPEL)
registers select whether a pending interrupt source, when enabled with the INTENABLEH and
INTENABLEL registers, creates a normal interrupt or a fast interrupt to the ARM920T processor. Each bit
in this register corresponds to an interrupt source available in the system. The reset state of both registers is
all interrupts generate a normal interrupt.
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.
10.4.6.1 Interrupt Type Register High
INTTYPEH
BIT 31 30 29
TYPE rw rw rw
0 0 0
RESET
BIT 15 14 13
TYPE rw rw rw
0 0 0
RESET
Table 10-10. Interrupt Type Register High Description
Name
INTTYPE Interrupt Type—Controls whether the individual interrupt
Bits 31–0 sources request a normal interrupt or a fast interrupt.
When a INTTYPE bit is set and the corresponding interrupt
source is asserted, the interrupt controller asserts a fast interrupt
request.
10-14
Interrupt Type Register High
28 27 26 25
INTTYPE [63:48]
rw rw rw rw
0 0 0 0
12 11 10 9
INTTYPE [47:32]
rw rw rw rw
0 0 0 0
Description
MC9328MX1 Reference Manual
24 23 22 21 20
rw rw rw rw rw
0 0 0 0 0
0x0000
8 7 6 5 4
rw rw rw rw rw
0 0 0 0 0
0x0000
0 = Interrupt source generates a
normal interrupt (nIRQ)
1 = Interrupt source generates a
fast interrupt (nFIQ)
Addr
0x00223018
19 18 17 16
rw rw rw rw
0 0 0 0
3 2 1 0
rw rw rw rw
0 0 0 0
Settings
MOTOROLA