參數(shù)資料
型號: GS1503-CFZ
廠商: Gennum Corporation
元件分類: Codec
英文描述: HD EMBEDDED AUDIO CODEC
中文描述: 高清嵌入式音頻編解碼
文件頁數(shù): 18/83頁
文件大?。?/td> 815K
代理商: GS1503-CFZ
15879 - 4
18 of 83
G
1.5 VIDEO DATA PROCESSING
1.5.1 Video Signal Input Detection
The GS1503 will set the VIDEO_DET external pin HIGH
when three consecutive TRS are detected in the input video
signal. Also, the VIDEO_DET bit of Host Interface register
000h is set HIGH.
1.5.2 Video Input CRC Error Detection
The GS1503 will set the CRC_ERR external pin HIGH when
a CRC error is detected in the input video signal. Also, the
CRC_ERR bit 5 of Host Interface register 000h is set HIGH.
The number of CRC errors accumulated in one video frame
can be read form CRC_CNT[11:0] in Host Interface
registers 006h and 007h.
1.5.3 Video Output CRC Insertion
When the CRC_INS bit 4 of Host Interface register 000h is
set HIGH, the GS1503 will re-calculate the video line CRC
words. The re-calculated CRC words are inserted in the
video output signal. When CRC_INS is set LOW, the line
CRC words are not updated and existing CRC words at the
input of the device will be output unchanged.
Register Settings
NAME
DESCRIPTION
ADDRESS
BIT
SETTING
DEFAULT
VIDEO_DET
Video input signal detection (1: Detection)
000
6
-
0
Register Settings
NAME
DESCRIPTION
ADDRESS
BIT
SETTING
DEFAULT
CRC_ERR
Video input signal CRC error detection (1: Detection)
000
5
-
0
CRC_CNT[11:0]
Video input signal CRC error accumulation in 1 video
frame
006
007
3-0
7-0
-
0
Register Settings
NAME
DESCRIPTION
ADDRESS
BIT
SETTING
DEFAULT
CRC_INS
Video line CRC insertion (1: Insertion)
000
4
1
1
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