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ST10 FAMILY PROGRAMMING MANUAL
PWRDN
Syntax
Operation
Description
This instruction causes the part to enter the power down mode. In this mode, all peripherals and the CPU
are powered down until the part is externally reset. To insure that this instruction is not accidentally exe-
cuted, it is implemented as a protected instruction. To further control the action of this instruction, the
PWRDN instruction is only enabled when the non-maskable interrupt pin (NMI) is in the low state. Other-
wise, this instruction has no effect.
Flags
E
-
E
Not affected
Z
Not affected
V
Not affected
C
Not affected
N
Not affected
Addressing Modes
Mnemonic
PWRDN
104/172
Enter Power Down Mode
PWRDN
Enter Power Down Mode
Z
-
Format
97 68 97 97
V
C
-
-
Bytes
4
N
-
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