M66273FP 데이터 시트보기 (PDF) - MITSUBISHI ELECTRIC
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M66273FP Datasheet PDF : 34 Pages
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MITSUBISHI <DIGITAL ASSP>
M66273FP
Ver.3.1 Dec,1999
LCD CONTROLLER with VRAM
(2) Description of registers
Address is listed for ICOS control. Incase of MCS control,set to address adding 50H to upper 7 bit (50**H).
[R1] Basic operation mode
Set the Basic operation mode
Address R/W
D7
RESET
0 Reset OFF
1 Reset ON
Function
·Software reset.
Restriction
·Surely return to reset
off after reset on.
And then, can't set
another bits (D6 to
D0) at the same time.
Reset
0
D6
IDXON
·Set to decide whether or not the function only for LCD
0 Index mode OFF
module built-in system is used.
0
·Set Index mode OFF for reset.
1 Index mode ON
DIV
Division of
·Set the division of MPUCLK input to set the
D5 D4 D3 MPUCLK input
reference clock cycle (MAINCLK) for internal
0 00 1
operation.
0 0 1 1/2 division
·Resetting does not divide MPUCLK.
0 1 0 1/4 division
0 1 1 1/8 division
1 0 0 1/16 division
00H R/W
D2
DISP
0 Display OFF
1 Display ON
·Control display ON/OFF of LCD.
·In the reverse mode with REV (D1) set to "1", "1" is output to
display data VD<n:0> with DISP="0".
·Reset sets display OFF.
D1
REV
0 Normal display
1 Reverse display
·Controls normal/reverse of LCD display.
·Resetting sets normal display.
·Don't set except for the
settings in the table at
left.
000
0
0
D0
LCDE
·Sets the data output from the LCDENB output pin.
0 LCDENB="0"output ·Resetting outputs "0" (Vss potential) to the LCDENB output pin.
1 LCDENB="1"output ·This function is prepared for controlling the apply voltage to LCD.
When the power supply is turned ON after registers have been
completely set, set this LCDE to "1" to apply the LCD voltage.
Conversely for turning OFF the power supply to the system, set
0
the LCDE to "0" to turn OFF the LCD voltage.
This prevents abnormal DC voltage from being applied to the
LCD.
This function depends on the LCD functions.
Use the function, if necessary.
8
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