參數(shù)資料
型號: M35071
廠商: Mitsubishi Electric Corporation
英文描述: Character Pattern Display Control IC(用于CRT和LCD顯示器控制的芯片)
中文描述: 字符模式顯示控制芯片(用于CRT顯示器和液晶顯示器控制的芯片)
文件頁數(shù): 18/50頁
文件大?。?/td> 251K
代理商: M35071
MITSUBISHI MICROCOMPUTERS
M35071-XXXSP/FP
SCREEN CHARACTER and PATTERN DISPLAY CONTROLLERS
18
RSEL1 RSEL0 DIVS1 DIVS0
Display frequency range
(MHz)
1
1
0
0
87.0 to 90.0
1
0
0
0
67.0 to 87.0
0
1
0
0
54.0 to 67.0
1
0
0
1
47.0 to 54.0
0
0
0
0
40.0 to 47.0
1
0
1
0
34.0 to 40.0
0
0
0
1
30.0 to 34.0
0
1
1
0
26.0 to 30.0
1
0
1
1
23.0 to 26.0
0
0
1
0
20.0 to 23.0
(2) To set display frequency range
Whenever setting display frequency (when EXCK1 = "0",
EXCK0 = "1", or EXCK1 = "1", EXCK0 = "1"), always set the
display frequency range in accordance with the display
frequency. This range is set from DIVS0, DIVS1 (address
120
16
), RSEL0 address 121
16
) and RSEL1 (address 122
16
).
Frequency ranges are given here below.
(3) Notes on setting display frequency
To change external clock (display) frequency or horizontal
synchronization frequency, always use the following
procedures.
To set EXCK1 = "0", EXCK0 = "1"
(a) Turn the display OFF. … DSPON (address 128
16
) = "0"
(b) Set the display frequency. … Set from DIV10 to DIV0,
DIVS0, DIVS1 (address 120
16
), RSEL0 (address 121
16
)
and RSEL1 (address 122
16
).
(c) Wait 20 ms while the horizontal synchronization signal is
being input.
(d) Turn the display ON. … DSPON (address 128
16
) = "1"
To set EXCK1 = "1", EXCK0 = "1"
(a) Turn the display OFF. … DSPON (address 128
16
) = "0"
(b) Set the display frequency. … Set from DIV10 to DIV0,
DIVS0, DIVS1 (address 120
16
), RSEL0 (address 121
16
)
and RSEL1 (address 122
16
).
(c) Wait 20 ms while the horizontal synchronization signal
and external clock are being input.
(d) Turn the display ON. … DSPON (address 128
16
) = "1"
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