參數(shù)資料
型號(hào)： EVAL-ADV7173EBZ
廠商： Analog Devices Inc
文件頁(yè)數(shù)： 22/60頁(yè)
文件大?。?/td> 0K
描述： BOARD EVALUATION FOR ADV7173
標(biāo)準(zhǔn)包裝： 1
系列： Advantiv®
主要目的： 視頻，視頻處理
嵌入式： 否
已用 IC / 零件： ADV7173
主要屬性： NTSC/PAL 數(shù)字視頻編碼器
次要屬性： I²C 接口
已供物品： 板
REV. B
ADV7172/ADV7173
–29–
MR31
MR30
MR37
MR32
MR34
MR33
MR35
MR36
MR31
MR30
RESERVED FOR
REVISION CODE
VBI OPEN
0
DISABLE
1
ENABLE
MR32
TTXRQ BIT
MODE CONTROL
0
DISABLE
1
ENABLE
MR34
TELETEXT
ENABLE
0
DISABLE
1
ENABLE
MR33
ACTIVE VIDEO
FILTER
0
ENABLE
1
DISABLE
MR37
CLOSED CAPTIONING
FIELD SELECTION
0
NO DATA OUT
0
1
ODD FIELD ONLY
1
0
EVEN FIELD ONLY
1
DATA OUT
(BOTH FIELDS)
MR36
MR35
Figure 47. Mode Register 3 (MR3)
MODE REGISTER 3 MR3 (MR37–MR30)
(Address (SR4–SR0) = 03H)
Mode Register 3 is an 8-bit-wide register. Figure 47 shows the
various operations under the control of Mode Register 3.
MR3 BIT DESCRIPTION
Revision Code (MR31–MR30)
This bit is read-only and indicates the revision of the device.
VBI_Open (MR32)
This bit determines whether or not data in the vertical blank-
ing interval (VBI) is output to the analog outputs or blanked.
VBI_Open is available in all timing modes. Also, if both
BLANK
input (TR03) and VBI_Open are enabled, TR03 takes priority.
Teletext Enable (MR33)
This bit must be set to “1” to enable teletext data insertion on
the TTX pin.
TTXRQ Bit Mode Control (MR34)
This bit enables switching of the teletext request signal from a
continuous high signal (MR34 = “0”) to a bit wise request
signal (MR34 = “1”).
Closed Captioning Field Selection (MR36–MR35)
These bits control the fields that closed captioning data is dis-
played on. Closed captioning information can be displayed on
an odd field, even field, or both fields.
Active Video Filter (MR37)
This bit controls the filter mode applied outside the active video
portion of the line. This filter ensures that the sync rise and
fall times are always on spec regardless of which luma filter
is selected.
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