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M35076 Arkusz danych(PDF) 19 Page - Renesas Technology Corp

Numer części M35076
Szczegółowy opis  SCREEN CHARACTER and PATTERN DISPLAY CONTROLLERS
PDF  46 Pages
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Producent  RENESAS [Renesas Technology Corp]
Strona internetowa  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

M35076 Arkusz danych(HTML) 19 Page - Renesas Technology Corp

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MITSUBISHI MICROCOMPUTERS
M35076-XXXSP
SCREEN CHARACTER and PATTERN DISPLAY CONTROLLERS
18
(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, DIVS2
(address 12016), RSEL0 address 12116) and RSEL1 (address
12216). 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 12816) = "0"
(b) Set the display frequency. … Set from DIV10 to DIV0,
DIVS0, DIVS1, DIVS2 (address 12016), RSEL0 (address
12116) and RSEL1 (address 12216).
(c) Wait 20 ms while the horizontal synchronization signal is
being input.
(d) Turn the display ON. … DSPON (address 12816) = "1"
To set EXCK1 = "1", EXCK0 = "1"
(a) Turn the display OFF. … DSPON (address 12816) = "0"
(b) Set the display frequency. … Set from DIV10 to DIV0,
DIVS0, DIVS1, DIVS2 (address 12016), RSEL0 (address
12116) and RSEL1 (address 12216).
(c) Wait 20 ms while the horizontal synchronization signal
and external clock are being input.
(d) Turn the display ON. … DSPON (address 12816) = "1"
RSEL1
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
RSEL0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
DIVS1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
DIVS0
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
DIVS2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
Display frequency range(MHz)
100.0 to 110.0
92.0 to 100.0
73.0 to 92.0
66.5 to 73.0
61.0 to 66.5
49.0 to 61.0
45.5 to 49.0
36.5 to 45.5
33.5 to 36.5
30.5 to 33.5
24.5 to 30.5
23.0 to 24.5
20.0 to 23.0



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