GDC21D401B Datasheet, PDF (7/28 Pages) Hynix Semiconductor – Video Decoder

GDC21D401B
Pin Description (continued)
NAME
DIS_INFO
D_INFO_WIN
PIC_DIS_SYNC
P_WAIT
PDWIN
PSTR[1:0]
\FFPN
SCLK
MBCLK
DEC_ERROR
FP_FD
PIN
TYPE
DESCRIPTION
VDP INTERFACE - SYNC & PICTURE FORMAT
174
O
Serialized picture format data
175
O
Serialized picture format data enable(active high)
230
I
Picture display sync. - 30 Hz or 29.97 Hz, 50% duty
VDP INTERFACE – PICTURE DATA
231
I
PDATA wait(active high).
This signal makes PDATA output to be suspended after 50
VDCLKs from the last high value.
This signal is the output of the VDP.
177
O
Picture data window(active high).
During 1 picture data decoding, this signal is high.
179,178
O
Picture structure.
This indicates the structure of output picture.
If this is equal to ‘1’, the output picture is top field picture.
If this is equal to ‘2’, the output picture is bottom field
picture.
If this is equal to ‘3’, the output picture is frame picture.
171
O
First field parity(active low).
This signal is the first_field_parity flag of output picture.
When output picture is interlaced frame picture, the field of
output frame is the first output by the VDP.
166
O
Slice decoding window(active high).
This signal has high value when a macroblock with the same
vertical position is decoded. There are at least 2-clock low
value periods between each slice decoding window.
168
O
Macroblock decoding window(active high).
This signal has high value when a macroblock data is
decoded. The width of high value is always 96 VDCLKs.
There are at least 2-clock low value periods between each
macroblock decoding window.
233
O
Decoding Error (active high)
This is a multiplexed output signal.
It is used to inform VDP R1.2 (GDC21D701B) of an error in
Picture or Macro Block.
235
O
Frame_Pred_Frame_Dct (active high)
This signal is explained in ISO/IEC 13818-2
(Information technology – Generic coding of moving
pictures and associated audio information : Video)
If this flag is set to ‘1’, only frame_DCT and frame prediction
are used. In a field picture, it should be ‘0’.
If progressive_frame is ‘1’, Frame_pred_frame_dct should be
set to ‘1’. This flag affects the syntax of the bitstream.
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