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參數(shù)資料
| 型號： | HD66760 |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | 104 X 80-dot Graphics LCD Controller/Driver for 256 Colors |
| 中文描述： | 104 × 80點(diǎn)圖形LCD控制器/驅(qū)動(dòng)器的256色 |
| 文件頁數(shù)： | 54/105頁 |
| 文件大小： | 653K |
| 代理商： | HD66760 |
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HD66760
54
Graphics Operation Processing
1. Write mode 1: AM = 0, LG2–0 = 000
This mode is used when the data is horizontally written at high speed. It can also be used to initialize the
graphics RAM (GRAM) or to draw borders. The swap function (SWP) and write-data mask function
(WM15–0) are also enabled in these operations. After writing, the address counter (AC) automatically
increments by 1 (I/D = 1) or decrements by 1 (I/D = 0), and automatically jumps to the counter edge one-
raster-row below after it has reached the left or right edge of the GRAM.
WM15
0 0 0 1 1 1 1 1 0 0 0 1 1 1 1 1
WM0
Operation Examples:
1) I/D = "1", AM = "0", LG2-0 = "000", SWP = "0"
2) WM15–0 = "1F1F"H
3) AC = "000"H
Write-data mask:
DB15
1 0 0 1 1 0 0 1 0 1 0 0 0 0 1 1
DB0
Write data (1):
Write data (2):
1 1 0 0 0 0 1 1 0 0 0 0 1 1 0 0
1 0 0
* * * * *
0 1 0
* * * * *
1 1 0
* * * * *
0 0 0
* * * * *
"0000"H
"0001"H
"0002"H
Write data (1)
Write data (2)
GRAM
*Write mask for plain G and B.
Note: The bits in the GRAM
indicated by '*' are not changed.
Figure 34 Writing Operation of Write Mode 1
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