參數(shù)資料
型號: LC74735NW
廠商: Sanyo Electric Co.,Ltd.
英文描述: On-Screen Display Controller
中文描述: 屏幕顯示控制器
文件頁數(shù): 51/52頁
文件大?。?/td> 153K
代理商: LC74735NW
No. 7545-51/52
LC74735NW
External ROM (2048 characters)
Conditions
Use a 16-bit 4M ROM with an access time less than 3 times the dot clock period
Example: DCLK = 50 MHz = 20 ns period
×
3 = under 60 ns
DCLK = 10 MHz = 100 ns period
×
3 = under 300 ns
ROM map
[1]
A1 to A0
00
12 dots
A6 to A2
QVGA mode
18 dots
WVGA mode
16 dots
D15 to D12, D11 to D0
Unused Used
01
10
11
Address
A17 to A7 (10 bits) = 2048 characters = character codes
Data
[2]
[3]
[4]
Display appearance
QVGA: 1 character = 12
×
18 dots
Character font: [1]
Graphics: [1] + [2] + [3] + [4]
WVGA: 1 character = 12
×
16 dots
Character font: [1] [2]
[3] [4]
Graphics: ([1] + [2] + [3] + [4]) displayed magnified 2
×
in both the horizontal and vertical directions.
[1]
[2]
12
12
[3]
16
16
[4]
[1]+[2]
+[3]+[4]
×
2
12
12
16
16
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