dsp56000 Freescale Semiconductor, Inc, dsp56000 Datasheet - Page 541

• Manufacturer Part Number: dsp56000
• Description: 24-bit Digital Signal Processor Family Manual
• Manufacturer: Freescale Semiconductor, Inc

Restrictions:
A STOP instruction cannot be used in a fast interrupt routine.
A STOP instruction cannot be the last instruction in a DO loop (i.e., at LA).
A STOP instruction cannot be repeated using the REP instruction.
Example:
Explanation of Example: The STOP instruction suspends all processor activity until the
processor is reset or interrupted as previously described. The STOP instruction puts the
processor in a low-power standby state.
Condition Codes:
The condition codes are not affected by this instruction.
Instruction Format:
Opcode:
Instruction Fields:
Timing: The STOP instruction disables the internal clock oscillator and internal distribu-
tion of the external clock.
Memory: 1 program word
MOTOROLA
STOP
STOP
None
STOP
0
23
15
LF
0
:
:
0
DM
14
0
13
T
0
Freescale Semiconductor, Inc.
**
0
12
For More Information On This Product,
MR
0
INSTRUCTION DESCRIPTIONS
S1
11
INSTRUCTION SET DETAILS
Stop Instruction Processing
0
16 15
S0
10
Go to: www.freescale.com
0
0
I1
9
0
;enter low-power standby mode
I0
8
0
S
7
0
0
6
L
0
E
5
0
8
U
4
7
CCR
1
N
3
0
0
Z
2
0
V
1
0
C
0
STOP
1
1
0
1
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