System Control Module

9.2.1.5Interrupt Controller Control Register (ICCR)

The interrupt controller control register (ICCR) contains a single control bit, the disable idle mask bit (DIM). When set, this bit inhibits the idle mode operation where the output of the ICMR is OR’ed to all ones. If this bit is set, then the interrupts that are capable of bringing the SA-1100 out of idle mode are defined by the contents of the ICMR. The following table shows the location of all interrupt level bits in the ICCR.

Bit

31

30

29

28

27

26

25

24

23

22

21

20

19

18

17

16

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R/W

 

 

 

 

 

 

 

Reserved

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Reset

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Bit

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R/W

 

 

 

 

 

 

 

Reserved

 

 

 

 

 

 

 

DIM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Reset

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Bit

Name

 

Description

 

 

 

{0}

DIM

Disable idle mask.

 

 

0 –

All enabled interrupts will bring the SA-1100 out of idle mode.

 

 

1 –

Only enabled and unmasked (as defined in the ICMR) will bring the SA-1100 out of

 

 

idle mode. This bit is cleared during all resets.

 

 

 

1..31

Reserved.

 

 

 

 

9-16

SA-1100 Developer’s Manual

Page 86
Image 86
Intel SA-1100 manual Interrupt Controller Control Register Iccr, Dim, Disable idle mask