参数资料
型号: ML87V3104TB
厂商: OKI ELECTRIC INDUSTRY CO LTD
元件分类: 显示控制器
英文描述: 640 X 240 PIXELS CRT OR FLAT PNL GRPH DSPL CTLR, PQFP100
封装: 14 X 14 MM, 0.50 MM PITCH, PLASTIC, TQFP-100
文件页数: 69/69页
文件大小: 444K
代理商: ML87V3104TB
FEDL87V3104-03
OKI Semiconductor
ML87V3104
9/69
2.3
Display functions
2.3.1 Main screen, sub-screen, and scrolling
The main screen and the sub-screen in the display screen (see Fig. F2.2.1) can respectively display the areas
specified in the display memory. (Fig. F2.3.1)
(3)
(1)
(2)
(4)
Main screen
Sub-screen
Display memory
Origin
LCD Screen
Fig. F2.3.1 The display screen composition
Control registers:
(1) MDPSTX [#31h, #30h]:
Starting horizontal address of reading out the main screen display area
(2) MDPSTY [#33h, #32h]:
Starting vertical address of reading out the main screen display area
(3) SDPSTX
[#35h, #34h]:
Starting horizontal address of reading out the sub-screen display area
(4) SDPSTY [#37h, #36h]:
Starting vertical address of reading out the sub-screen display area
(5) MDPPGA [#38h]:
Page number of the main screen display area
(6) SDPPGA [#39h]:
Page number of the sub-screen display area
The starting addresses of reading out the display memory can be specified for the separate main screen and
sub-screen in units of 16 horizontal pixels and one vertical line. In addition, by successively over-writing by the
host CPU, it is possible to realize scrolling of the display screen.
The sub-screen is always displayed by superimposing on the main screen.
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