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參數(shù)資料
| 型號： | UPD6465GT |
| 廠商： | NEC Corp. |
| 英文描述： | ON-SCREEN CHARACTER DISPLAY CMOS LSI FOR 12-LINE, 24-COLUMN DECK-TYPE VCR |
| 中文描述： | 屏幕字符顯示的CMOS大規(guī)模集成電路的12線，24柱甲板型錄像機 |
| 文件頁數(shù)： | 15/52頁 |
| 文件大小： | 570K |
| 代理商： | UPD6465GT |
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μ
PD6464A,6465
15
2.6 Video Signal Method Control Command
The
μ
PD6464A, 6465 can select the NTSC, PAL, and PAL-M methods for the internal video signal.
The
μ
PD6464A can also select the PAL-N method.
When the SECAM method is selected, the internal video signal is output by the PAL method.
D7
D6
D5
D4
D3
D2
D1
D0
0
1
0
0
1
N/P2
Note
N/P1
N/P0
Video signal method control bits
N/P1
N/P0
0
0
0
1
1
1
Function
NTSC
PAL
SECAM
1
0
PAL-M
N/P2
0
0
0
0
0
0
PAL-N
1
Setting prohibited
Note
Fixed to
“
0
”
( PD6465).
Video signal method control bits
These bits can generate internal NTSC, PAL, PAL-M and PAL-N (
μ
PD6464A only) video signals.
With the SECAM method, however, a color subcarrier from the SECAM color subcarrier input pin (pin 22) is fixed
in the external mode. In the internal mode, an internal PAL video signal is generated.
The internal video signal is generated by using a
×
4 multiplier or an external crystal. Use a crystal with a frequency
of 4 f
SC
for each video signal.
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