參數(shù)資料
型號: PCA84C644
廠商: NXP SEMICONDUCTORS
元件分類: 微控制器/微處理器
英文描述: 8-bit microcontrollers with OSD and VST(帶OSD 和 VST的8位微控制器)
中文描述: 8-BIT, MROM, 10 MHz, MICROCONTROLLER, PDIP42
文件頁數(shù): 28/40頁
文件大小: 233K
代理商: PCA84C644
1996 Nov 29
28
Philips Semiconductors
Product specification
8-bit microcontrollers with OSD and VST
84C44X; 84C64X; 84C84X
12.8
OSD character size and colour selection
12.8.1
C
HARACTER SIZE
The character sizes are determined by the bits:
CDTW, for the width
CDTH, for the height.
The character sizes are selected by bits SZn1 and SZn0,
which denotes:
SZ01 and SZ00 for Row 0
SZ11 and SZ10 for Row 1.
Table 23
Character sizes selection
H denotes one horizontal line, T denotes one OSDC clock period and D denotes dots per character width/height.
SIZE BITS
CHARACTER SIZE
DOT MATRIX POINT
SZn1
SZn0
VERTICAL
HORIZONTAL
VERTICAL
HORIZONTAL
9D
13D
6D
8D
0
0
1
1
0
1
0
1
18H
36H
54H
72H
26H
52H
78H
104H
12T
24T
36T
48T
16T
32T
48T
64T
2H
4H
6H
8H
2T
4T
6T
8T
12.8.2
C
OLOUR SELECTION
Colour selection is achieved using bits in the,
OSDCA register: CC34, CC24 and CC14
OSDCB register: CC33, CC23, CC32, CC12,
CC21, and CC11
Display data registers: CC1 and CC0.
In this way every combination of four colours can be made
(black and white can not be displayed at the same time).
The user may choose one colour out of each block.
Table 24 shows the selection of the output combinations.
Tables 25 and 26 show the possible colour combinations.
Fig.27 Colour control.
handbook, full pagewidth
CHARACTER ROM
DISPLAY DATA
MEMORY
DISPLAY CIRCUIT
CONTROL REGISTERS
VOW3
VOB
OR
CC1
CC0
CCxx
dot
background control
VOW2
VOW1
MCD184
OUTPUT
CONTROL
LOGIC
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