mpc823rg Freescale Semiconductor, Inc, mpc823rg Datasheet - Page 523

• Manufacturer Part Number: mpc823rg
• Description: Mpc823 Powerquicc Integrated Communications Processor For Portable Systems
• Manufacturer: Freescale Semiconductor, Inc

16.3.4.11.1 Coefficients and Sample Data Buffers. Each input vector is stored in a cyclic
buffer containing M+1 bytes. Each sample is a 16-bit half-word and the newest sample is
stored in the address that follows the previous sample. The output buffer is a cyclic buffer
that contains N+1 bytes. Each output is a 16-bit half-word and the newest output is stored
in the address that follows the previous one.
16.3.4.11.2 WADD Function Descriptor. The WADD 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 16-33. WADD Modulation Table and Sample Data Buffers
X
1
RES
INPUT SAMPLES
1
x
2K bytes
1
x
x
(n-k+1)
x
1
1
(n-2)
(n-1)
1
W
*
*
*
(n)
2
Freescale Semiconductor, Inc.
For More Information On This Product,
3
I
MPC823 REFERENCE MANUAL
4
Go to: www.freescale.com
X
5
2
INPUT SAMPLES
M + 1 bytes
x
6
2
x
x
(n-k+1)
x
2
2
(n-2)
(n-1)
2
*
*
*
*
(n)
RESERVED
RES
7
XYPTR
M
A
B
N
I
8
9
Communication Processor Module
N + 1 length buffer
10
OUTPUT
Y(n-k+1)
Y(n-2)
Y(n-1)
11
Y(n)
*
*
*
*
*
*
12
OPCODE
13
14
16-71
15