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DS4830 User’s Guide

24

Table 3-2. System Register Bit Functions

REGISTER

REGISTER BIT NUMBER

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

0

AP

—

—

—

—

AP (4 bits)

APC

CLR

IDS

—

—

—

MOD2

MOD1

MOD0

PSF

Z

S

—

GPF1

GPF0

OV

C

E

IC

—

—

—

—

—

—

INS

IGE

IMR

IMS

—

IM5

IM4

IM3

IM2

IM1

IM0

SC

TAP

—

—

CDA0

—

ROD

PWL

—

IIR

IIS

—

II5

II4

II3

II2

II1

II0

WDCN

POR

EWDI

WD1

WD0

WDIF

WTRF

EWT

RWT

A[n] (n=15:0)

A[n] (16 bits)

PFX[n] (n=7:0)

PFX[n] (16 bits)

IP

IP (16 bits)

SP

—

—

—

—

—

—

—

—

—

—

—

—

SP (4 bits)

IV

IV (16 bits)

LC[0]

LC[0] (16 bits)

LC[1]

LC[1] (16 bits)

OFFS

OFFS (8 bits)

DPC

—

—

—

—

—

—

—

—

—

—

—

WBS2

WBS1

WBS0

SDPS1

SDPS0

GR

GR (16 bits)

GRL

GRL (8 bits)

BP

BP (16 bits)

GRS

GRS (16 bits) = (GRL : GRH)

GRH

GRH (8 bits)

GRXL

GRXL (16 bits) = (GRL.7, 8 bits) : (GRL, 8 bits)

FP

FP = BP[OFFS] (16 bits)

DP[0]

DP[0] (16 bits)

DP[1]

DP[1] (16 bits)