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UPD17062 Datasheet(PDF) 158 Page - Renesas Technology Corp

Part # UPD17062
Description  MOS INTEGRATED CIRCUIT
PDF  298 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

UPD17062 Datasheet(HTML) 158 Page - Renesas Technology Corp

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µPD17062
13.4
HALT FUNCTION
The halt function stops the operation of the CPU clock by executing the HALT h instruction.
When the HALT h instruction is executed, the program stops at this instruction and rests there until the
halt state is released.
In the halt state, the current drain in the device is reduced by the amount required by the CPU to operate.
The halt state can be released using the timer carry FF, interrupt, and key entry.
The operand h of the HALT h instruction specifies a condition (timer carry FF, interrupt, or key entry) to
release the halt state.
The HALT h instruction is always effective regardless of the input level at the CE pin.
Sections 13.4.1 to 13.4.5 explain the halt state and halt release conditions.
13.4.1
Halt State
The CPU is entirely at a stop in the halt state.
In the halt state, the program completely stops at the HALT h instruction.
In the halt state, however, the peripheral hardware continues operating as it did before execution of the
HALT h instruction.



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