MAS3506D datasheet(23/52 Pages) MICRONAS

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PRELIMINARY DATA SHEET

MAS 3506D

Micronas

3.5. Control and Status Memory

The memory cells given in the following sections may

be read (Section 3.3.9.) or written (Section 3.3.7.) in

order to observe or control the operation of the

MAS 3506D.

Note! Memory cells not given in the tables must not be

written.

Table 3–11: Control and status memory cells

Address

(hex)

R/W

Function

Default

Name

D1:7ee

Main Status Indicator of the BC-Decoder

The Status cell returns global status information about the World-

Space decoder. Its value is also returned by the ‘Default Read’

command as described in Section 3.3.10.

bit [15:12] BRI

Bit Rate Index

Reserved

1...8

n*16 kbit/s

bit [11:8]

NSC

Zero-based number of available Service

Components

1 SC available

...

8 SCs available

bit [7:4]

reserved

bit [3]

MCRC

MPEG CRC Error

no CRC-error in the last BC-frame

CRC-error occured in the last BC-frame

bit [2]

MFS

MPEG frame sync indication

no MPEG synchronisation

MPEG synchronisation

bit [1]

BCS

Broadcast Channel frame sync indication

no BC synchronisation

BC synchronisation

While the signals MPEG-FRAME-SYNC and BC-FRAME-SYNC in

the PIO-register c8hex rise with the beginning of each frame, the

signals MFS and BFS are stable as long as a valid bitstream is

received.

bit [0]

Synchronized state

not in synchronized state (e.g. no bitstream)

MAS 3506D is synchronized and decoding

Status

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