CAP 3001 A
2.1.19. CAP3001A-ProgrammableDigitalAudioIn-
terface (PDAI)
Input Section:
– SCLKI
– SDIN1
– WSI
serial clock input
serial data input 1
word select input
error line input
– ERR
The PDAI is the digital audio interface between the CAP
3001 A and external digital sources such as CD/DAT
player or additional external processors. It offers a large
variety of modes and should therefore cover most of the
Output Section:
2
– SCLKO serial clock output
– SDOUT serial data output
digital audio standards (I S-compatible formats).
– SDIN2
– WSO
serial data input 2
word select output
Fig. 2–12 shows a standard application with an external
digital source and a second CAP 3001 A. The interface
is split into the input section and the output section:
Fig. 2–13 shows the timing of the signals and the pro-
grammable features. The programming is done by writ-
ing the correct bit patterns into the DSP output buffer.
This must be handled by the DSP software.
CD-PLAYER
SCLKI
SDIN1
WSI
ERR
analog
input
SCLKO
SDOUT
SDIN2
WSO
CAP
3001 A
or
CAP 3001 A
ext. Proc.
CLKOUT
analog
output
Fig. 2–12: System Configuration
MICRONAS INTERMETALL
13
MICRONAS [ MICRONAS ]
