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M35071 Scheda tecnica(PDF) 19 Page - Renesas Technology Corp

Il numero della parte M35071
Spiegazioni elettronici  SCREEN CHARACTER and PATTERN DISPLAY CONTROLLERS
PDF  40 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Produttore elettronici  RENESAS [Renesas Technology Corp]
Homepage  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

M35071 Scheda tecnica(HTML) 19 Page - Renesas Technology Corp

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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
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 (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 (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"



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