PROGRAMMING THE DEVICE

1- I

Write

S

80

A

SUB-ADDRESS

A

DATA

A

DATA

A

P

Read

S

80

A

SUB-ADDRESS

A

P

S

81

A

DATA

A

DATA

N

S = Start, A = Acknowledge, P = Stop, N = No acknowledge.

Sub-address is the register address pointer ; this value auto-increments for both write and read.

2 - List of Registers

Registers not controlled by AUTOSTANDARD, except bits marked ”*” which are controlled

Name

Addr.

(Hex)

Reset

(Bin)

Register Function /Description

bit 7

bit 6

bit 5

bit 4

bit 3

bit 2

bit 1

bit 0

SWD (Switch, Dematrix & De-emphasis)

PRE-FM

2

0001 1101

0

0

0

Fm Prescale [4:0]

PRE-NICAM

3

0001 1101

0

0

0

Nicam Prescale [4:0]

STD-CT-IIS

4

0001 1000

0

0

gain

demoff

mute *

SWD [2:0] *

FMDC1

5

read only

FM DC level 1

FMDC2

6

read only

FM DC level 2

AUDIO MATRIX

PRE-LINE-IN

7

0000 1000

IF Switch

AGC

Switch off

0

0

Line Inputs Gain [3:0]

AUD-MX-CNT

8

0010 0010

mout1

S1 o/p select

mout0

S2 o/p select

NICAM

NICON

9

0000 0000

dif-pol

0

TSCTRL [1:0]

ECT

MAE

0

0

ERR-COUNT

A

read only

error [7:0]

AUTOSTANDARD

AO-STAT0

B

read only

std-det

sid1

sid0

aomute

am-mono

SWD [2:0] (monitor)

AO-STAT1

C

read only

fm2-car

fm2-sq

fm1-car

fm1-sq

qpsk-lk

zw-det

zw-st

zw-dm

AO-STAT2

D

read only

nic-det

f-mute

LOA

Nicam CBI [4:1]

n-mute

AO-CONTROL

E

0001 1111

mute ov

mono ov

unmute

C4 ov

standard check [3:0]

AO-TIMEOUT

F

1010 0101

Time 2 setting (1280ms)

Time 1 setting (160ms)

ZWEITON

ZWEITON

10

1000 1000

Thresh-Sig [3:0]

Thresh-ST [3:0]

DEMODULATOR

AGCC

11

0001 0001 agc-cmd*

0

0

agc-ref [2:0]

agc-cst[1:0]

AGCS

12

0100 00xx

0

agc-err [4:0]

sig-ovr

sig-und

IAGCR

14

1000 1000

Iagc-ref [7:0]

IAGCC

15

0000 0011

iagc-off*

0

0

0

0

Iagc-cst[2:0]

IAGCS

16

read only

Iagc-Ctrl [7:0]

FFFIXL

17

0000 0000

Clock Generator Fine Frequency (8 lsb’s)

FFFIXH

18

0110 1110

0

demod mode M2:M0*

clock gen fine freq (4 msb’s)

FCFIX

19

0001 0001

0

0

Clock Generator Coarse Frequency

CRF2

20

0000 0000

Channel 2 Carrier Recovery Frequency

CETH2

21

0011 0101

Channel 2 carrier-th [7:0]

SQTH2

22

0011 1100

Channel 2 squelch-th [7:0]

Range of Registers Controlled by AUTOSTANDARD Function (address 23 Hex to 3C Hex)

CRF1

3D

0000 0000

Channel 1 Carrier Recovery Frequency

CETH1

3E

0011 0101

Channel 1 carrier-th [7:0]

SQTH1

3F

0011 1100

Channel 1 squelch-th [7:0]

STV8203

12/31