EM65565A ELAN Microelectronics Corp, EM65565A Datasheet - Page 35

• Manufacturer Part Number: EM65565A
• Description: 65 Com/ 132 Seg Stn Lcd Driver
• Manufacturer: ELAN Microelectronics Corp

Product Specification (V1.0) 06.06.2005
(This specification is subject to change without further notice)
7.11 Reset
7.12 Display All Points ON
7.13 Display Normal/Reverse
7.14 LCD Bias Set
7.15 Common Output Mode Select
This instruction initializes the display data line register, hence, the column address, the
page address counter, the V0 voltage regulator internal resistor ratio, the electronic
volume, and the static indicator are reset, and read-modify-write mode and test mode
are released. It does not affect the contents of the DDRAM. When the power supply is
turned on, a reset signal is entered in the /RST pin. The reset instruction cannot be
used in place of the reset signal.
(E2H)
This command makes it possible to force all display points ON regardless of the
content of the DDRAM. The contents of the DDRAM are maintained when this is done.
(A4H, A5H)
This command can reverse the lit and unlit display without overwriting the contents of
the DDRAM. When this is done the DDRAM contents are maintained.
(A6H, A7H)
This command specifies the voltage Bias ratio for the LCD
(A2H, A3H)
This command can select the scan direction of the common output terminal
D/I /RD /WR(R/W) D7
D/I /RD /WR(R/W) D7
D/I /RD /WR(R/W) D7
D/I /RD /WR(R/W) D7
0
0
0
0
D/I
0
1
1
1
1
/RD
1
0
0
0
0
/WR(R/W)
1
1
1
1
0
D6
D6
D6
D6
0
0
0
1
D5
D5
D5
D5
D7
1
1
1
0
1
D4
D4
D4
D4
0
0
0
0
D6
1
D3
D3
D3
D3
D
0
0
0
D5
1
D2
D2
D2
D2
1
1
0
*
65 COM/132SEG STN LCD Driver
D1
D1
D1
D1
0
1
1
*
D4
0
D0
D0
D0
D0
D
D
D
*
D3
0
D=0: Normal display
D=1: Display all point ON
D=0: Normal
(RAM data “H” LCD ON)
D=1: Reverse
(RAM data “L” LCD ON)
D=0 : Normal
COM0 COM63
D=1 : Reverse
COM63 COM0
D=0 : 1/9 Bias
D=1 : 1/7 Bias
D2
0
Setting
Setting
Setting
Setting
EM65565A
D1
1
D0
x 29
0