參數(shù)資料
型號: LC74731W
元件分類: 畫面疊加
英文描述: ON-SCREEN DISPLAY IC, PQFP64
封裝: SQFP-64
文件頁數(shù): 5/38頁
文件大?。?/td> 153K
代理商: LC74731W
No. 6526-13/38
LC74731W
Second byte (2)
DA0 to 7
Register
Content
Notes
State
Function
7—
0
6—
0
5—
0
4
c12
0
Character code (00xx to 1Fxx (hexadecimal))
External ROM upper address
1
3
c11
0
1
2
c10
0
1
c09
0
1
0
c08
0
1
Second byte (3)
Note that all registers are set to 0 when the LC74731W is reset by the RST pin.
Continuous mode (cleared by setting CS high) operates as follows according to IR.
When internal ROM is specified:
1-1
1-2-1
1-2-2
1-2-3
When external ROM is specified: 1-1
1-2-1
1-2-2
1-2-3
1-2-2
1-2-3
1-2-2
1-2-3
Note that all registers are set to 0 when the LC74731W is reset by the RST pin.
DA0 to 7
Register
Content
Notes
State
Function
7
c07
0
Character code (00 to FF (hexadecimal))
External ROM lower address
1
FE (hexadecimal): Space character
Internal ROM address
6
c06
0
FF (hexadecimal): Transparent space character
1
5
c05
0
1
4
c04
0
1
3
c03
0
1
2
c02
0
1
c01
0
1
0
c00
0
1
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