Motorola MPC823e User Manual

Communication Processor Module
16-72 MPC823e REFERENCE MANUAL MOTOROLA
DSP
COMMUNICATION
16
PROCESSOR MODULE
The first half-word is composed of the following bits:
S—STOP
0 = Do not stop after executing this function descriptor.
1 = Stop after executing this function descriptor.
Bits 1 and 4–10—Reserved
These bits are reserved and must be set to 0.
W—Wrap (Final Function Descriptor in Table)
0 = This is not the last function descriptor in the function descriptor table.
1 = This is the last function descriptor in the function descriptor table. After this buffer
has been used, the CPM processes the first function descriptor that the FDBASE
index pointer points to in the table. The number of function descriptors in this table
are programmable and determined only by the W bit and overall space constraints
of the memory.
I—Interrupt
0 = No interrupt is generated after this function is processed.
1 = A maskable interrupt is generated after this function is processed.
OPCODE—Function Operation Code
This field specifies the function to be executed. Table 16-6 contains the value for this field.
16.3.4.11.3 WADD Parameter Packet. The WADD parameter packet is composed of
seven 16-bit half-words and is described in the table below.
Table 16-18. WADD Parameter Packet
ADDRESS NAME DESCRIPTION
Half-word 1 I Number of Iterations
Half-word 2 a X
1
Weight Coefficient
Half-word 3 b X
2
Weight Coefficient
Half-word 4 M Samples Buffer Size-1
Half-word 5 XYPTR Pointer to a structure composed of X
1
input sample data pointer, output buffer
pointer, and the X
2
input sample data pointer.
Half-word 6 EPTR Output Buffer Size-1
Half-word 7 RES Reserved

Motorola MPC823e Specifications

General

Brand	Motorola
Model	MPC823e
Category	Computer Hardware
Language	English