am79q02 ETC-unknow, am79q02 Datasheet - Page 51

• Manufacturer Part Number: am79q02
• Description: Quad Subscriber Line Audio-processing Circuit Qslac Devices
• Manufacturer: ETC-unknow

41, 42. Write/Read R Filter Coefficients
(8A/8Bh)
R/W = 0: Write
R/W = 1: Read
The Z-transform equation for the IIR filter is defined as:
Sample rate = 8 kHz
The coefficient for the IIR filter is defined as:
The Z-transform equation for the FIR filter is defined as:
Sample rate = 16 kHz
For i = 0 to 5, the coefficients for the R2 filter are defined as:
Power Up and Hardware Reset (
See note under Commands 31 and 32.
Command
I/O Input Data Byte 1
I/O Input Data Byte 2
I/O Input Data Byte 3
I/O Input Data Byte 4
I/O Input Data Byte 5
I/O Input Data Byte 6
I/O Input Data Byte 7
I/O Input Data Byte 8
I/O Input Data Byte 9
I/O Input Data Byte 10
I/O Input Data Byte 11
I/O Input Data Byte 12
I/O Input Data Byte 13
I/O Input Data Byte 14
(H
HR
R
H
R
H
6
i
FIR
IIR
FIR
=
=
=
z ( )
=
C1i 2
(z) = 1, R
C16 2
H
IIR
-------------------------------- -
1
=
–
•
R
•
•
1 z
(
0
R
H
–
–
+
–
m1i
6
FIR
ml6
•
R
6
1 –
{
1
z
= 0.9902)
{
1
z
1 –
SLAC Products
1
–
+
)
1
+
+
C2i 2
C46
C26
C40
C20
C41
C21
C42
C22
C43
C23
C44
C24
C45
C25
C26 2
D
RST
1
R
7
2
z
•
•
2 –
) Values = 2E01 0111 0190 0190 0190 0190 0190 (Hex)
–
+
m2i
–
m26
D
R
0
6
[
3
1
z
[
1
3 –
+
+
C3i 2
+
m46
m26
m40
m20
m41
m21
m42
m22
m43
m23
m44
m24
m45
m25
C36 2
R
D
0
5
4
•
z
4 –
•
–
+
m3i
–
m36
R
D
(
0
5
1
4
z
(
5 –
+
1
+
C4i 2
C46 2
C36
C16
C30
C10
C31
C11
C32
C12
C33
C13
C34
C14
C35
C15
D
1
•
3
•
–
m4i
–
m46
)
D
]
0
}
2
)
MPI Command
]
}
m36
m16
m30
m10
m31
m11
m32
m12
m33
m13
m34
m14
m35
m15
D
1
1
R/W
D
0
51