Intel PXA255 - Manual (Page 127)

Intel® PXA255 Processor Developer’s Manual 4-23
System Integration Unit
4.2.2.3 Interrupt Controller Control Register (ICCR)
The ICCR, shown in Table 4-32 , contains a single control bit, Disable Idle Mask (DIM). In normal
Idle mode any enabled interrupt can bring the processor out of Idle mode regardless of the value in
ICMR. If this bit is set, then the interrupts that can bring the processor out of Idle mode are defined
by the ICMR.
Note: This register is cleared during all resets.
Table 4-36 describes the available first-level interrupts and their location in the ICPR.
Table 4-31. ICLR Bit Definitions
Physical Address
0x40D0_0008
ICLR System Integration Unit
Bit 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
IL31 IL30 IL29 IL28 IL27 IL26 IL25 IL24 IL23 IL22 IL21 IL20 IL19 IL18 IL17
reser
v
e
d
reser
v
e
d
IL14 IL13 IL12 IL1
1
IL10
IL9 IL8
reserved
Reset 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ? ? ? ? ? ? ? ?
Bits Name Description
<31:8> IL[x]
Interrupt Level ‘x’ (where n = 8 through 14 and 17 through 31).
0 – Interrupt routed to IRQ interrupt input.
1 – Interrupt routed to FIQ interrupt input.
<7:0> — reserved
Table 4-32. ICCR Bit Definitions
Physical Address
0x40D0_0014
ICCR System Integration Unit
Bit 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
reserved
DI
M
Reset ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? 0
Bits Name Description
<31:1> — reserved
<0> DIM
Disable Idle mask.
0 – All enabled interrupts bring the processor out of idle mode.
1 – Only enabled and unmasked (as defined in the ICMR) bring the processor out of idle
mode.
This bit is cleared during all resets.