Table of Contents
Advertisement
16.3.4.7.2 MOD Function Descriptor. The MOD 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 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 5–10—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.
Z— Complex Output
0 = Only the real component of the result is written to the output buffer.
1 = The real and imaginary parts of the result is written to the output buffer.
OPCODE—Function Operation Code
This field specifies the function to be executed. Table 16-6 contains the value for this table.
MOTOROLA
3
4
5
6
7
I
Z
RES
MPTR
XYPTR
RESERVED
MPC823e REFERENCE MANUAL
Communication Processor Module
8
9
10
11
I
K
M
N
12
13
14
15
OPCODE
16-61
Advertisement
Table of Contents
