NJU6538 View Datasheet(PDF) - Japan Radio Corporation
Part Name
Description
Manufacturer
NJU6538 Datasheet PDF : 27 Pages
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NJU6538
(h) Reset
This instruction reset the LSI to the following status, however it doesn’t change the contents of
the DDRAM. Please be careful that it can’t be substituted for the reset operation by using of the
RESb terminal.
Reset status by “reset” instruction:
1. Page address
: (0) page
2. Column address
: (00)H
3. EVR register
4. Duty select
: (D3, D2, D1, D0 = ”1, 1, 1, 1”)
:1/10 Duty
5. General output port(Po0 to Po3) PWM phase / frequency (D1,D0 = ”0,0”)
6. General output port(Po0 to Po3) PWMEN=0,
PWM value (PWM6, PWM5, PWM4, PWM3, PWM2, PWM1, PWM0 = ” 0,0,0,0,0,0,0”)
7. Set the General output port (Po3) by Po3/S0 terminal
The DDRAM is not affected by this initialization.
A0 D7 D6 D5 D4 D3 D2 D1 D0
011100010
(i)EVR register set
E.V.R. resister set instruction adjusts the contrast of the LCD, and selects.
One LCD driving voltage VLCD out of 16 voltage-stages by setting E.V.R. register.
Set the binary code “0000” when contrast adjustment is unused.
A0 D7 D6 D5 D4 D3 D2 D1 D0
00010
E.V.R. data
D3
D2
D1
D0
0
0
0
0
0
0
0
1
0
0
1
0
0
0
1
1
0
1
0
0
0
1
0
1
0
1
1
0
0
1
1
1
1
0
0
0
1
0
0
1
1
0
1
0
1
0
1
1
1
1
0
0
1
1
0
1
1
1
1
0
1
1
1
1
VLCD2 terminal level (Typical)
V LCD1
0.984V LCD1
0.968V LCD1
0.952V LCD1
0.938V LCD1
0.923V LCD1
0.909V LCD1
0.896V LCD1
0.882V LCD1
0.870V LCD1
0.857V LCD1
0.845V LCD1
0.833V LCD1
0.822V LCD1
0.811V LCD1
0.800V LCD1
Ver.2003-05-09
-9-
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