Analogue Control Interface

FX839

© 1997 Consumer Microcircuits Limited

10

D/839/4

Read Only Registers (8-Bit and 16-Bit)

HEX

ADDRESS/

COMMAND

REGISTER

NAME

BIT 7

(D7)

BIT 6

(D6)

BIT 5

(D5)

BIT 4

(D4)

BIT 3

(D3)

BIT 2

(D2)

BIT 1

(D1)

BIT 0

(D0)

$D1

IRQ

FLAGS

HIRQF4

LIRQF4

HIRQF3

LIRQF3

HIRQF2

LIRQF2

HIRQF1

LIRQF1

$DC

ADC DATA1

(1)

BIT 7

BIT 6

BIT 5

BIT 4

BIT 3

BIT 2

BIT 1

BIT 0

(2)

000000

BIT 9

BIT 8

$DD

ADC DATA2

(1)

BIT 7

BIT 6

BIT 5

BIT 4

BIT 3

BIT 2

BIT 1

BIT 0

(2)

000000

BIT 9

BIT 8

$DE

ADC DATA3

(1)

BIT 7

BIT 6

BIT 5

BIT 4

BIT 3

BIT 2

BIT 1

BIT 0

(2)

000000

BIT 9

BIT 8

$DF

ADC DATA4

(1)

BIT 7

BIT 6

BIT 5

BIT 4

BIT 3

BIT 2

BIT 1

BIT 0

(2)

000000

BIT 9

BIT 8

Write Only Register Description

RESET Register (Hex Address $01)

The reset command has no data attached to it. It sets the device registers into the specific states listed below:

REGISTER NAME

BIT 7

(D7)

BIT 6

(D6)

BIT 5

(D5)

BIT 4

(D4)

BIT 3

(D3)

BIT 2

(D2)

BIT 1

(D1)

BIT 0

(D0)

CLOCK/IRQ CONTROL

000000

00

DAC CONTROL

000000

00

000000

00

000000

00

000000

00

ADC CONTROL

000000

00

VARIABLE ATTENUATOR

(1)

000000

00

(2)

000000

00

MAG COMP ONE LEVELS

(1)

000000

00

(2)

000000

00

MAG COMP TWO LEVELS

(1)

000000

00

(2)

000000

00

MAG COMP THREE LEVELS

(1)

000000

00

(2)

000000

00

MAG COMP FOUR LEVELS

(1)

000000

00

(2)

000000

00

Note 1:

Default resolution is defined as 8-Bits.