mpc823rg Freescale Semiconductor, Inc, mpc823rg Datasheet - Page 520
mpc823rg
Manufacturer Part Number
mpc823rg
Description
Mpc823 Powerquicc Integrated Communications Processor For Portable Systems
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.MPC823RG.pdf
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Communication Processor Module
16.3.4.10.1 Coefficients and Sample Data Buffers. The coefficients vector occupies k
pairs of 16-bit half-words (real and imaginary components) in memory and C(0) is stored in
the first location. The sample input buffer is a cyclic buffer containing M+1 bytes. Each
sample is a pair of 16-bit half-words (real and imaginary components) and the new sample
is stored in the address that follows the previous sample.
16.3.4.10.2 LMS2 Function Descriptor. The LMS2 function descriptor bit table is
described below.
OFFSET + A
OFFSET + C
OFFSET + E
OFFSET + 0
OFFSET + 2
OFFSET + 4
OFFSET + 6
OFFSET + 8
0
S
Figure 16-31. LMS2 Coefficients and Sample Data Buffers
RES
1
W
2
Freescale Semiconductor, Inc.
For More Information On This Product,
3
I
COEFFICIENTS
imag{C(k-1)}
real{C(k-1)}
imag{C(0)}
imag{C(1)}
real{C(0)}
real{C(1)}
2K bytes
MPC823 REFERENCE MANUAL
4
Z
*
*
Go to: www.freescale.com
RES
5
6
INDEX
RESERVED
RESERVED
7
CBASE
XPTR
EPTR
M
K
INPUT SAMPLES
imag{X(n-k+1)}
real{X(n-k+1)}
imag{X(n-2)}
imag{X(n-1)}
8
real{X(n-2)}
real{X(n-1)}
M + 1 bytes
imag{X(n)}
real{X(n)}
RES
*
*
*
*
*
9
10
11
12
OPCODE
13
MOTOROLA
14
15
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