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Table 36-27. WADD Modulation Table and Sample Data Buffers
X
Input Samples
1
36.17.2 WADD Function Descriptor
The WADD function descriptor is shown in Figure 36-35.
0
1
Offset + 0
S
Ñ
Offset + 0x2
Offset + 0x4
Offset + 0x6
Offset + 0x8
Offset + 0xA
Offset + 0xC
Offset + 0xE
The status and control bits (at offset 0x00) are described in Table 36-2. The WADD
parameter packet consists of seven 16-bit entries and is described in Table 36-28.
Address
Name
Hword 1
I
Number of iterations
a
Hword 2
X
weight coefÞcient
1
b
Hword 3
X
weight coefÞcient
2
Hword 4
M
Samples buffer_size - 1
Hword 5
XYPTR
Pointer to a structure composed of X
input buffer pointer.
Hword 6
N
Output buffer_size - 1
Hword 7
Ñ
Reserved
MOTOROLA
X
Input Samples
2
*
x
(n-k+1)
x
1
*
*
x
(n-1)
1
x
(n)
1
2
3
4
5
W
I
Figure 36-35. WADD Function Descriptor
Table 36-28. WADD Parameter Packet
Chapter 36. Digital Signal Processing
Part V. The Communications Processor Module
*
(n-k+1)
Y(n-k+1)
2
*
*
x
(n-1)
2
x
(n)
2
6
7
8
9
0
I
a
b
M
XYPTR
N
Ñ
Description
input buffer pointer, the output buffer pointer, and the X
1
Output
*
*
*
Y(n-1)
Y(n)
10
11
12
13
14
01100
15
2
36-29
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