AO-STAT2 (AUTOSTANDARD Status 2 ; NICAM)

Address

: 0D

Type

: R

bit 7

bit 6

bit 5

bit 4

bit 3

bit 2

bit 1

bit 0

NIC-DET

F-MUTE

LOA

NICAM CBI

N-MUTE

NIC-DET

: NICAM detected

indicates a valid NICAM signal found (1 = detected).

F-MUTE

: Frame Mute

indicates the NICAM decoder is muted because the superframe alignment has been lost.

LOA

: Loss of frame Alignment word

indicates loss of alignment to the frame alignment word in the NICAM decoder; the bit error

rate is too high or no signal is present.

NICAM CBI

: indicates the received NICAM control bits with the following interpretation :

CBI[4:1]

Nicam Signal Description

X000

Stereo

X001

ch1 = mono, ch2 = data

X010

Dual Mono

X011

704Kbit/s data

X1XX

FM selected during additional coding options

0XXX

Nicam different to FM mono

1XXX

Nicam mono(M1) or stereo = FM mono

N-MUTE

: NICAM Mute

indicates that the NICAM decoder is muted (it may be unmuted by AO-CONTROL bit 5).

PROGRAMMING THE DEVICE (continued)

STV8203

19/31