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PDF ( 数据手册 , 数据表 ) WT6805

零件编号 WT6805
描述 Monitor On Screen Display
制造商 Weltrend Semiconductor
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WT6805 数据手册, 描述, 功能
( DataSheet : www.DataSheet4U.com )
偉詮電子股份有限公司
Weltrend Semiconductor, Inc.
WT6805
Monitor On-Screen Display
Preliminary Data Sheet
REV. 1.1
August 30, 2002
The information in this document is subject to change without notice.
Weltrend Semiconductor, Inc. All Rights Reserved.
新竹市科學工業園區工業東九路 24 號 2 樓
2F, No. 24, Industry E. 9th RD., Science-Based Industrial Park, Hsin-Chu, Taiwan
TEL:886-3-5780241 FAX:886-3-5794278.5770419
www.EDmaatial:sSuhpepoert4@Uw.ecltoremnd.com.tw







WT6805 pdf, 数据表
eltrend
Example of button box
WT6805
Data Sheet Rev. 1.1
(BOX2-BOX0)= ( 1, 1, 1)
( 1, 1, 0)
( 0, 1, 0)
( 0, 0, 1)
(BOX2-BOX0)= ( 1, 0, 1)
( 1, 0, 0)
( 0, 1, 0)
( 0, 0, 1)
ROW Control Register
(Row,Col) R/W
( 0,30)
:W
(14,30)
Bit 7
--
Bit 6
--
Bit 5
--
Bit4
BOX
Bit 3
--
Bit 2
--
Bit 1
DCH
Bit 0
DCW
BOX – “0” : Background color attribute bits (BG_R, BG_G, BG_B) are used.
“1” : Button boxes bits (BOX2, BOX1, BOX0) are used.
DCH – Double Character height
DCW – Double Character width. The character width of even column (column 0, 2, 4, 6, ….) is doubled
and the odd column will not display.
Write data into RAM must enable PLL or external clock. The I2C interface clock frequency must less
than 1/24 pixel clock frequency.
Weltrend Semiconductor, Inc.
Page 8







WT6805 equivalent, schematic
eltrend
WT6805
Data Sheet Rev. 1.1
Window Shadow Width Register
This register controls the width of window shadow.
(Row,Col) R/W Bit 7
(15,21) W WSW41
Default Value = $00h
Bit 6
WSW40
Bit 5
WSW31
Bit4
WSW30
Bit 3
WSW21
Bit 2
WSW20
Bit 1
WSW11
Bit 0
WSW10
WSW41,WSW40 – Shadow width of Window 4.
WSW31,WSW30 – Shadow width of Window 3.
WSW21,WSW20 – Shadow width of Window 2.
WSW11,WSW10 – Shadow width of Window 1.
Width = (bit value x 2) + 2 dots
Window Shadow Height Register
This register controls the height of window shadow.
(Row,Col) R/W Bit 7
(15,22) W WSH41
Default Value = $00h
Bit 6
WSH40
Bit 5
WSH31
Bit4
WSH30
Bit 3
WSH21
Bit 2
WSH20
Bit 1
WSH11
Bit 0
WSH10
WSH41,WSH40 – Shadow height of Window 4.
WSH31,WSH30 – Shadow height of Window 3.
WSH21,WSH20 – Shadow height of Window 2.
WSH11,WSH10 – Shadow height of Window 1.
Height = (bit value x 2) + 2 lines
Window Shadow Height
Window Shadow Width
Weltrend Semiconductor, Inc.
Page 16










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