Zilog Z80380 - Manual (Page 201)

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Z380 ™
U SER ' S M ANUAL Z ILOG
DC-8297-03
SLP
SLEEP
SLP
Operation: if (STBY not enabled) then
CPU Halts
else
Z380 enters Standby mode
With Standby mode disabled, this instruction is interpreted and executed as a HALT
instruction.
With Standby mode enabled, executing this instruction causes all device operation to stop,
thus minimizing power dissipation. The /STNBY signal is asserted to indicate this Standby
mode status. /STNBY remains asserted until an interrupt or reset request is accepted, which
causes the device to exit Standby mode. If the option is enabled, an external bus request
also causes the devcie to exit the Standby mode.
Flags: S: Unaffected
Z: Unaffected
H: Unaffected
V: Unaffected
N: Unaffected
C: Unaffected
Addressing Execute
Mode Syntax Instruction Format Time Note
SLP 11101101 01110110 2