參數(shù)資料
型號： PCA84C886
廠商： NXP Semiconductors N.V.
英文描述： Microcontrollers for TV tuning control and OSD applications(應(yīng)用于TV調(diào)頻和OSD的微控制器)
中文描述： 微控制器的控制和調(diào)整（應(yīng)用于電視調(diào)頻和OSD的微控制器應(yīng)用的電視OSD）
文件頁數(shù)： 49/72頁
文件大小： 564K
代理商： PCA84C886
1995 Jun 15
49
Philips Semiconductors
Preliminary specification
Microcontrollers for TV tuning
control and OSD applications
PCA84C646; PCA84C846
12.5
Derivative Register 35 (VPOS)
Derivative Register 35 selects the vertical starting position of the display row.
Table 33
Derivative Register 35 (address 35H)
Table 34
Description of Derivative Register 35 bits
12.6
Derivative Register 36 (HPOS)
Derivative Register 36 selects the horizontal starting position of the display row.
Table 35
Derivative Register 36 (address 36H)
Table 36
Description of Derivative Register 36 bits
7
6
5
4
3
2
1
0
V5
V4
V3
V2
V1
V0
BIT
SYMBOL
V5
V4
V3
V2
V1
V0
DESCRIPTION
7 to 6
5
4
3
2
1
0
Reserved.
These 6 bits enable 1 of 64 vertical start positions to be selected for the display row.
The vertical starting position is calculated as follows:
Where (V5 to V0) is the decimal value of the contents of Register 35; (V5 to V0)
≥
0.
7
6
5
4
3
2
1
0
H5
H4
H3
H2
H1
H0
BIT
SYMBOL
H5
H4
H3
H2
H1
H0
DESCRIPTION
7 to 6
5
4
3
2
1
0
Reserved.
These 6 bits enable 1 of 64 horizontal start positions to be selected for the display row.
The horizontal starting position is calculated as follows:
Where (H5 to H0) is the decimal value of the contents of Register 36; (H5 to H0)
≥
10.
VP
4
V5 to V0
(
)
×
[
]
horizontal scan lines
×
=
HP
4
H5 to H0
(
)
×
5
+
[
]
OSD clock cycle
×
=
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