參數(shù)資料
型號: M37281MAH-XXXSP
廠商: Renesas Technology Corp.
英文描述: SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER
中文描述: 單芯片8位CMOS微機隱蔽字幕解碼器和屏幕顯示控制器
文件頁數(shù): 115/172頁
文件大小: 1319K
代理商: M37281MAH-XXXSP
Rev.1.01 2003.07.16 page 115 of 170
M37281MAH
XXXSP,M37281MFH
XXXSP,M37281MKH
XXXSP, M37281EKSP
8.11.17 Scan Mode
This microcomputer has the bi-scan mode for corresponding to H
SYNC
of double speed frequency. In the bi-scan mode, the vertical start
display position and the vertical size is two times as compared with
the normal scan mode. The scan mode is selected by bit 1 of the
OSD control register 1 (refer to Figure 8.11.3).
Scan Mode
Parameter
Bit 1 of OSD Control Register 1
Vertical Display Start Position
Vertical Dot Size
Table 8.11.9 Setting for Scan Mode
Normal Scan
0
Value of vertical position register
1H
1T
C
1/2H
1T
C
1H
2T
C
2H
3T
C
3H
Bi-Scan
1
Value of vertical position register
2H
1T
C
1H
1T
C
2H
2T
C
4H
3T
C
6H
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