hd66420 Renesas Electronics Corporation., hd66420 Datasheet - Page 35
hd66420
Manufacturer Part Number
hd66420
Description
Ram-provided 160 Channel 4-level Grey Scale Driver For Dot Matrix Graphics Lcd
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.HD66420.pdf
(52 pages)
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HD66420
Set HOLT bit to 1 (control register 1)
Internal operation stops
Set DTY or GRAY bit to 1 (control register 2)
Oscillator 2 starts working
Wait for oscillation to stabilize
Clear HOLT bit to 0 (control register 1)
Internal operation starts
Figure 21 Procedure for Changing Oscillator
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