UPD17073 NEC, UPD17073 Datasheet - Page 168

• Manufacturer Part Number: UPD17073
• Description: 4-BIT SINGLE-CHIP MICROCONTROLLER WITH HARDWARE FOR DIGITAL TUNING SYSTEM
• Manufacturer: NEC

19. STANDBY
is in the backup status.
19.1 General
the device by stopping part of or entire device, or slowing down the CPU clock.
dedicated instruction, “HALT h”, has been executed.
circuit when a dedicated instruction, “STOP s”, has been executed.
However, it can be said to be a mode of the standby function in that this pin controls operations.
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The standby function is used for the purpose of reducing the current consumption of the device when the device
Figure 19-1 shows the outline of the standby block.The standby function is to reduce the current consumption of
The standby function can be used in the following four modes, which can be selected according to the application:
<1> Halt mode
<2> Clock stop mode
<3> Controlling device operation by CE pin
<4> Low-speed function
The halt mode is to reduce the current consumption of the device by stopping the operation of the CPU when a
The clock stop mode is to reduce the current consumption of the device by stopping the oscillation of the oscillator
The CE pin is usually used to control the operation of the PLL frequency synthesizer and to reset the device.
The low-speed function is to reduce the current consumption of the device by slowing down the CPU clock.
PD17072,17073