m35076 Renesas Electronics Corporation., m35076 Datasheet - Page 19

• Manufacturer Part Number: m35076
• Description: Screen Character And Pattern Display Controllers
• Manufacturer: Renesas Electronics Corporation.

(2) To set display frequency range
(3) Notes on setting display frequency
18
RSEL1
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 120
122
To change external clock (display) frequency or horizontal
synchronization frequency, always use the following
procedures.
To set EXCK1 = "0", EXCK0 = "1"
To set EXCK1 = "1", EXCK0 = "1"
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
(a) Turn the display OFF. … DSPON (address 128
(b) Set the display frequency. … Set from DIV10 to DIV0,
(c) Wait 20 ms while the horizontal synchronization signal is
(d) Turn the display ON. … DSPON (address 128
(a) Turn the display OFF. … DSPON (address 128
(b) Set the display frequency. … Set from DIV10 to DIV0,
(c) Wait 20 ms while the horizontal synchronization signal
(d) Turn the display ON. … DSPON (address 128
16
). Frequency ranges are given here below.
DIVS0, DIVS1, DIVS2 (address 120
121
being input.
DIVS0, DIVS1, DIVS2 (address 120
121
and external clock are being input.
RSEL0
16
16
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
) and RSEL1 (address 122
) and RSEL1 (address 122
16
), RSEL0 address 121
DIVS2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
DIVS1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
16
DIVS0
16
16
) and RSEL1 (address
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
).
).
16
16
), RSEL0 (address
), RSEL0 (address
Display frequency range(MHz)
100.0 to 110.0
16
16
92.0 to 100.0
16
16
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
) = "1"
) = "1"
) = "0"
) = "0"
SCREEN CHARACTER and PATTERN DISPLAY CONTROLLERS
M35076-XXXSP
MITSUBISHI MICROCOMPUTERS