參數(shù)資料
型號: M37225MC-XXXSP
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 8.1 MHz, MICROCONTROLLER, PDIP42
封裝: 0.600 INCH, 1.78 MM PITCH, PLASTIC, SDIP-42
文件頁數(shù): 86/128頁
文件大?。?/td> 1481K
代理商: M37225MC-XXXSP
M37225M6/M8/MA/MC-XXXSP, M37225ECSP
Rev.1.00
Nov 01, 2000
page 58 of 124
REJ03B0136-0100Z
(2) Scan mode
This microcomputer has the bi-scan mode for corresponding to HSYNC
of double-speed frequency. In the bi-scan mode, the vertical start
display position and the vertical dot size is two times as compared
with the normal scan mode. The scan mode is selected by bit 5 of the
OSD control register (refer to Figure 8.10.3).
Parameter
Bit 5 of OSD Control Register
Vertical Display Start Position
Vertical Dot Size
Table 8.10.1 Setting for Scan Mode
Normal Scan
0
Value of vertical position register 1H
1TOSC 1H
2TOSC 2H
3TOSC 3H
Bi-Scan
1
Value of vertical position register 2H
1TOSC 2H
2TOSC 4H
3TOSC 6H
Scan Mode
Notes 1: TOSC = OSD oscillation cycle
2: H = HSYNC
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