MTV021N20 View Datasheet(PDF) - Myson Century Inc
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MTV021N20 Datasheet PDF : 17 Pages
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MYSON
TECHNOLOGY
MTV021
tents of CH4-CH0 is greater than or equal to 18, it will be regarded as equal to 17. See Table 2
and Table 3 for detail description of this operation.
b7 b6 b5 b4 b3 b2 b1 b0
Column 15 -
HORR
MSB
LSB
HORR - Specify the resolution of a horizontal display line, and the increment of each step is 12 dots. That is,
the pixels' number per H line equal to HORR*12. It is recommended that HORR should be greater
than or equal to 36 and smaller than 96M / (Hfreq*12). The initial value is 40 after power up.
b7 b6 b5 b4 b3 b2 b1 b0
Column 16 -
-
-
RSPACE
MSB
LSB
RSPACE - Define the row to row spacing in unit of horizontal line. That is, extra RSPACE horizontal lines will
be appended below each display row, and the maximum space is 31 lines. The initial value is 0
after power up.
b7
b6
b5
b4
b3
b2
b1
b0
Column 17 OSDEN BSEN SHADOW FAN BLANK WENCLR RAMCLR FBKGC
OSDEN - Activate the OSD operation when this bit is set to "1". The initial value is 0 after power up.
BSEN - Enable the bordering and shadowing effect.
SHADOW - Activate the shadowing effect if this bit is set, otherwise the bordering is chosen.
FAN - Enable the fade-in/fade-out function when OSD is turned on from off state or vice verca. The function
roughly takes about one second to fully display the whole menu or to disappear completely.
BLANK - Force the FBKG pin output to high while this bit is set to "1".
WENCLR - Clear all WEN bits of window control registers when this bit is set to "1". The initial value is 0 after
power up.
RAMCLR - Clear all ADDRESS bytes, BGR, BGG, BGB and BLINK bits of display registers when this bit is set
to "1". The initial value is 0 after power up.
FBKGC - Define the output configuration for FBKG pin. When it is set to "0", the FBKG outputs during the dis-
playing of characters or windows, otherwise, it outputs only during the displaying of character.
B7
b6
b5
b4
b3
Column 18 TRIC FBKGP PWMCK SELVCL HSP
b2
b1
b0
VSP VCO1 VCO0
TRIC - Define the driving state of output pins ROUT, GOUT, BOUT and FBKG when OSD is disabled. That
is, while OSD is disabled, these four pins will drive low if this bit is set to 1, otherwise these four pins
are in high impedance state. The initial value is 0 after power up.
FBKGP - Select the polarity of the output pin FBKG
=1
⇒Positive polarity FBKG output is selected.
=0
⇒Negative polarity FBKG output is selected.
The initial value is 1 after power up.
10/17
MTV021 Revision 5.0 6/29/1999
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