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參數(shù)資料
| 型號(hào)： | AM79Q062JC |
| 廠商： | ADVANCED MICRO DEVICES INC |
| 元件分類(lèi)： | 編解碼器 |
| 英文描述： | A/MU-LAW, PCM CODEC, PQCC32 |
| 封裝： | PLASTIC, LCC-32 |
| 文件頁(yè)數(shù)： | 77/95頁(yè) |
| 文件大?。?/td> | 1399K |
| 代理商： | AM79Q062JC |
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SLAC Products
79
COP (Coefficient Operation) Command
GCI Command
The COP command writes or reads data related to filter coefficients. Filter coefficient data is used by the voice
processors within the QSLAC device to configure the various filters in the voice channel. In this case, 1 to 14 coefficient
bytes follow the command byte. The QSLAC device interprets the bytes as canonic signed digital (CSD) data and sets
the coefficients accordingly.
The QSLAC device responds to the read coefficient command by sending up to 14 CSD bytes upstream. These bytes
contain the coefficients requested by the upstream controller. For diagnostic purposes, various RAM locations
containing data to which the QSLAC device has access can also be read back by this command.
The generic transmission sequence for the COP command is shown in Table 7.
Table 7. Generic Transmission Sequence for COP Command
The following tables show the format of the COP bytes that follow a downstream address byte.
The format in the upstream direction is the same except that the command byte is omitted.
Downstream
Upstream
ADDRESS
Command byte, COP
write
Data1
Datam
Control byte, COP
read
m
≤ 14
Data1
Datan
n
≤ 14
Bit
D7
D6
D5
D4
D3
D2
D1
D0
COMMAND
CMD
DATA
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