GDC21D301A Datasheet, PDF (17/35 Pages) Hynix Semiconductor – Transport Decoder

GDC21D301A
Instruction (0x008)
When error(discontinuity) happens in video packet,
i.e., in case Sec=‘1’, the GDC21D301A inputs
video sequence error code in data output.
In case Aps=‘0’, the GDC21D301A outputs audio
compressed data in parallel mode, and in case
Aps=‘1’, the GDC21D301A outputs the data in
serial mode through AUD_SER_DATA pin.
When Vts is 1, the GDC21D301A inputs PTS and
DTS data before sending them to video packet
according to Pdf flag bit of Interrupt Flag 2
register. When Ucb is 1, the GDC21D301A
15
Sec Aps Vts
8
Ucb Ice
receives data from channel input.
When Ice is 1, the GDC21D301A ignores channel
empty condition(i.e., the GDC21D301A continues
decoding data in channel buffer whether they were
decoded before or not.).
When Stc is 1, the GDC21D301A loads internal
PCR counter to STC5 register, and then this bit is
cleared automatically. In case Lst is 1, the
GDC21D301A loads internal PCR counter with
new value when next PCR value is loaded in the
packet, and then this bit is cleared automatically.
7
0
Stc Lst Den Ien
FIELD
Sec
Aps
Vts
Ucb
Ice
Stc
Lst
Den
Ien
BITS
15
14
DESCRIPTION
Sequence_error_code
Audio parallel/serial output
13 Video PTS,DTS output
9 Update channel buffer
8 Ignore channel empty
3 load STC5
2 load PCR
1 Global decoding enable
0 Global Interrupt enable
VALUES
1=sequence_error_code inserted
0=parallel
1= serial
1=PTS/DTS inserted
DEFAULT
1=decoding enable
1=interrupt enable
Round Buffer (0x00a)
When Rpn is 1, write pointer is reached to end
pointer, and the write pointer is changed to start
pointer(i.e., the GDC21D301A overwrites the
following data).
15
87
0
Rp8 Rp7 Rp6 Rp5 Rp4 Rp3 Rp2 Rp1 Rp0
FIELD
Rpn
BITS
DESCRIPTION
8:0 Round the buffer of the PSI_n
VALUES
DEFAULT
18