Rainbow Electronics W90P710CDG User Manual

Page 51

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W90P710CD/W90P710CDG

Publication Release Date: September 19, 2006

- 51 -

Revision B2

BITS

DESCRIPTION

[31:30] PACKAGE

Package Type Select
These two bits are power-on setting latched from pin D[9:8]

Package [31:30]

Package Type

1 1

176-pin

Package

[29:24] VERSION

Version of chip

[23:0] CHIPID

The chip identifier 0x090.0710

Arbitration Control Register (ARBCON)

REGISTER ADDRESS

R/W

DESCRIPTION

RESET

VALUE

ARBCON 0xFFF0_0004 R/W Arbitration Control Register

0x0000_0000

31

30

29

28

27

26

25

24

RESERVED

23

22

21

20

19

18

17

16

RESERVED

15

14

13

12

11

10

9

8

RESERVED

7

6

5

4

3

2

1

0

RESERVED IPACT

IPEN

PRTMOD

BITS

DESCRIPTION

[31:3] RESERVED

-

[2] IPACT

Interrupt priority active.
When IPEN=”1”, this bit will be set when the ARM core has an
unmasked interrupt request. This bit is available only when the
PRTMOD=0.

[1] IPEN

Interrupt priority enable bit
0 = the ARM core has the lowest priority.
1 = enable to raise the ARM core priority to second
This bit is available only when the PRTMOD=0.

[0] PRTMOD

Priority mode select
0 = Fixed Priority Mode (default)
1 = Rotate Priority Mode

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