參數(shù)資料
型號: AM79Q031
廠商: Electronic Theatre Controls, Inc.
英文描述: Quad Subscriber Line Audio-Processing Circuit (QSLAC) Devices
中文描述: 四用戶線路音頻處理電路(QSLAC)設(shè)備
文件頁數(shù): 47/68頁
文件大?。?/td> 1361K
代理商: AM79Q031
SLAC Products
47
30. Read Revision Code Number (RCN)
(73h)
MPI Command
This command returns an 8-bit number (RCN) describing the revision number of the QSLAC
device. This command does not depend on the state of the Channel Enable Register.
31, 32. Write/Read GX Filter Coefficients
(80/81h)
R/W = 0: Write
MPI Command
R/W = 1: Read
The coefficient for the GX filter is defined as:
)
Power Up and Hardware Reset (
RST
) Values = A9F0 (Hex) (H
GX
= 1.995 (6 dB)).
Note:
The default value is contained in a ROM register separate from the programmable coefficient RAM.
There is a filter enable bit in Operating Functions Register to switch between the default and programmed
values.
33, 34. Write/Read GR Filter Coefficients
(82/83h)
R/W = 0: Write
MPI Command
R/W = 1: Read
The coefficient for the GR filter is defined as:
Power Up and Hardware Reset (
RST
) Values = 23A1 (Hex) (H
GR
= 0.35547 (
8.984 dB)).
See note under Commands 31 and 32.
D
7
0
D
6
1
D
5
1
D
4
1
D
3
0
D
2
0
D
1
1
D
0
1
Command
I/O Data
RCN7
RCN6
RCN5
RCN4
RCN3
RCN2
RCN1
RCN0
D
7
1
C40
C20
D
6
0
D
5
0
m40
m20
D
4
0
D
3
0
C30
C10
D
2
0
D
1
0
m30
m10
D
0
R/W
Command
I/O Data Byte 1
I/O Data Byte 2
D
7
1
C40
C20
D
6
0
D
5
0
m40
m20
D
4
0
D
3
0
C30
C10
D
2
0
D
1
1
m30
m10
D
0
R/W
Command:
I/O Data Byte 1
I/O Data Byte 2
H
GX
1
C10
(
2
m10
1
C20
2
m20
1
C30
2
m30
1
C40
2
m40
+
(
)
+
[
]
+
{
}
+
=
H
GR
C10
2
m10
1
C20
2
m20
1
C30
2
m30
1
C40
2
m40
+
(
)
+
[
]
+
{
}
=
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