AVT MAGIC DAB, Hardware/Software Description

Page: 17 / 70

PAGE 17
S y s t e m D e s c r i p t i o n
The Digital IO circuit generates the control signals for the operator circuit. Also
the interface adaption is implemented in this circuit, as is also the case in Line,
Data and Extension Bus circuits. The user data will be transmitted via pro-
grammable logic to the data processing DSPs.
FIG. 4 BLOCK DIAGRAM OF THE INTERFACE UNIT (MULTIPLEXER)
DSP-Bus
Operator
Line
Data
Ext. Bus
Demux-DSP
ETI-DSP
RS232C
E1
LSD
HSD
to Decoder
24.576 MHz
7...9 MHz
Dat
a
signal
s
Digital IO
Programm.
Logic
PLL
TS16