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参数资料
| 型号： | LC7454A |
| 元件分类： | 消费家电 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PDIP18 |
| 封装： | DIP-18 |
| 文件页数： | 4/16页 |
| 文件大小： | 696K |
| 代理商： | LC7454A |
LC7454A/M
No.6685-12/16
<16 bit data judgment buffer>
The data judgment buffer includes the data which indicates the existence of the Index Plus + format data and data rate (1x
or 2x). Bit 0 to 4 contain the existence of the signal and bit 8 to 15 contain the data rate. Bit 7 contains the field information
(Odd or Even). The following table shows functions of each bit.
b0 to b7 : Existence of 1x or 2x data format.
b8 to b15 : Data format judgment on the selected line.
*If neither 1x nor 2x data are sensed on the selected line, these bits become ‘0’.
*16 bit data judgment buffer is cleared at the next line 10 as well as 32 bit data output buffer 1-5.
*Even though the data judgment buffer indicates the existence of the data, it is recommended that the existence of the
data should be verified by checking the parity bit of the data.
Bit
Contents
Note
b0
0 : Data do not exist on the first selected line.
1 : Data exist on the first selected line.
‘0’ if no line is selected.
b1
0 : Data do not exist on the second selected line.
1 : Data exist on the second selected line.
‘0’ if one or less line is selected.
b2
0 : Data do not exist on the third selected line.
1 : Data exist on the third selected line.
‘0’ if two or less line is selected.
b3
0 : Data do not exist on the fourth selected line.
1 : Data exist on the fourth selected line.
‘0’ if three or less line is selected.
b4
0 : Data do not exist on the fifth selected line.
1 : Data exist on the fifth selected line.
‘0’ if four or less line is selected.
b5
b6
NOT USE
always”0”
b7
0 : Even field
1 : Odd field
Bit
Contents
Note
b8
0 : 1x data format on the first line.
1 : 2x data format on the first line.
‘0’ if no line is selected.
b9
0 : 1x data format on the second line.
1 : 2x data format on the second line.
‘0’ if one or less line is selected.
b10
0 : 1x data format on the third line.
1 : 2x data format on the third line.
‘0’ if two or less line is selected.
b11
0 : 1x data format on the fourth line.
1 : 2x data format on the fourth line.
‘0’ if three or less line is selected.
b12
0 : 1x data format on the fifth line.
1 : 2x data format on the fifth line.
‘0’ if four or less line is selected.
b13
b14
b15
NOT USE
always”0”
b1
b10
b9
b8
b7
b6
b5
b4
b3
b2
b11
b0
b15
b14
b13
b12
Output
direction
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相关代理商/技术参数 |
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|---|---|
| LC7454M | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:CMOS Data Slicer |
| LC7455 | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:Closed Caption Signal Extraction IC |
| LC7455A | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:Closed Caption Signal Extraction IC |
| LC7455M | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:Closed Caption Signal Extraction IC |
| LC7456A | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:U.S. Closed Caption Signal Extraction IC |
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