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84C44X датащи(PDF) 25 Page - NXP Semiconductors

номер детали 84C44X
подробное описание детали  8-bit microcontrollers with OSD and VST
PDF  38 Pages
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производитель  PHILIPS [NXP Semiconductors]
домашняя страница  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

84C44X датащи(HTML) 25 Page - NXP Semiconductors

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October 1994
26
Philips Semiconductors
Product specification
8-bit microcontrollers with OSD and VST
84C44X; 84C64X; 84C84X
12.6.4
DERIVATIVE REGISTER OSDCB
Table 21 Derivative register OSDCB (address 43H)
Table 22 Description of OSDCB bits
REGISTER
FUNCTION
OSDCB
Determine the selection of:
• The size of the dot matrix grid
• Four colours from a possible seven for the display.
7
6
5
4
3
2
1
0
CDTW
CDTH
CC33
CC23
CC32
CC12
CC21
CC11
BIT SYMBOL
FUNCTION
7
CDTW
Character dot width control.The state of this bit determines the dot width of the character. When
the CDTW bit is set to:
Logic 1, the character width is 6 dots.
Logic 0, the character width is 8 dots.
6
CDTH
Character dot height control. The state of this bit determines the dot height of the character. When
the CDTH bit is set to:
Logic 1, the character height is 13 dots.
Logic 0, the character height is 9 dots.
5
CC33
Colour control bits.
In every VSYNCN cycle one screen can select any 4 colours from 7 and in addition a blank or black
screen. Combinations of CC1X, CC2X and CC3X control the character outputs VOW1, VOW2 and
VOW3 as shown in Table 24.
4
CC23
3
CC32
2
CC12
1
CC21
0
CC11



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