Motorola MPC823e Reference Manual page 512

Communication Processor Module
COEFFICIENTS
C(0)
C(1)
C(2)
C(3)
C(4)
C(5)
2K bytes
Figure 16-23. IIR Coefficients and Sample Data Buffers
16.3.4.6.2 IIR Function Descriptor. The IIR function descriptor bit table is described
below.
0 1 2
S RES W
OFFSET + 0
OFFSET + 2
OFFSET + 4
OFFSET + 6
OFFSET + 8
OFFSET + A
OFFSET + C
OFFSET + E
The first half-word is composed of the following bits:
S—STOP
0 = Do not stop after executiing this function descriptor.
1 = Stop after executing this function descriptor.
Bits 1, 4–5, and 8–10—Reserved
These bits are reserved and must be set to 0.
16-58
INPUT SAMPLES
*
*
x(n-k+1)
*
*
x(n-2)
x(n-1)
x(n)
M + 1 bytes
3 4 5 6 7
I RES INDEX
TPTR
CBASE
XYPTR
RESERVED
MPC823e REFERENCE MANUAL
OUTPUT
*
*
*
*
Y(n-k+1)
*
*
Y(n-2)
Y(n-1)
Y(n)
N + 1 bytes
8 9 10 11
RES
I
M
N
12 13 14 15
OPCODE
MOTOROLA