M65863FP Datasheet, PDF (26/61 Pages) Mitsubishi Electric Semiconductor – Dolby Digital Decoder

Product Note
April 1998
M65863FP
Dolby Digital Decoder
Soft Mute Control (muteonoff)
1 bit
This field controls soft muting. M65863FP starts to mute output when the field is changed to 1 and
finishes muting when the field is changed to 0. Default value is 1 (mute on). While this field can be
changed at any time, set value is reflected at the beginning at a new audio block.
muteonoff
0
1
Description
Mute OFF
Mute ON
DEMUX I/F Protocol Control (burstcont)
1 bit
This field is valid. when using DEMUX I/F (inportsel=10) and specifies a interface protocol. When the
field is '1', M65863FP inputs Dolby Digital (AC-3) stream for exactly 1 frame at a time. When the field is
'0', M65863FP inputs Dolby Digital (AC-3) stream until the input buffer is full. Default value is '0'. Set the
value in the field only once when M65863FP is in the initial state.
Copy Right Bit (copyrightb)
1 bit
The value in this filed is written in the "copyrightb" field in IEC958 when using DEMUX I/F.
IEC958 Data Stream Number Selection (istrnums)
3 bits
M65863FP decodes the data stream whose number is same as this field. Default value is b'000. Set
value in the field is reflected at the beginning at a new audio frame.
address h'21
Category Code (catecode)
8 bits
Value specified in this field is written in the category code field of the channel status word of IEC958
output. Default value is h'00. This field can be set at any time.
address h'22
address h'23
Karaoke Mixing Coefficient (kcoeffa)
16 bits
Coefficient for mixing V1 with Lk. Value h'7FFF corresponds to 1.0. Default value is h'0000 (0.0). While
this field can be changed at any time, set value is reflected in synchronization with the audio block during
Dolby Digital (AC-3) decoding.
address h'24
address h'25
Karaoke Mixing Coefficient (kcoeffb)
16 bits
Coefficient for mixing V2 with Lk. Value h'7FFF corresponds to 1.0. Default value is h'0000 (0.0). While
this field can be changed at any time, set value is reflected in synchronization with the audio block during
Dolby Digital (AC-3) decoding.
address h'26
address h'27
Karaoke Mixing Coefficient (kcoeffc)
16 bits
Coefficient for mixing M with Lk. Value h'7FFF corresponds to 1.0. Default value is h'0000 (0.0). While
this field can be changed at any time, set value is reflected in synchronization with the audio block during
Dolby Digital (AC-3) decoding.
address h'28
address h'29
Karaoke Mixing Coefficient (kcoeffd)
16 bits
Coefficient for mixing V1 with Ck. Value h'7FFF corresponds to 1.0. Default value is h'0000 (0.0). While
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