參數(shù)資料
型號(hào)： UPD784916AGF
廠商： NEC Corp.
英文描述： 16-BIT SINGLE-CHIP MICROCONTROLLERS
中文描述： 16位單晶片微控制器
文件頁數(shù)： 57/86頁
文件大?。?/td> 446K
代理商： UPD784916AGF
μ
PD784915A, 784916A
57
4.2 Standby Function
The standby function serves to reduce the power dissipation of the chip and is used in the following modes:
Mode
Function
HALT mode
Stops operating clock of CPU. Reduces average power dissipation when
used in combination with normal mode for intermittent operation
Stops oscillator. Stops all internal operations of chip to minimize current
dissipation to leakage current only
Stops main system clock with subsystem clock used as system clock.
CPU can operate with subsystem clock to reduce power dissipation
Standby function in low power dissipation mode. Stops operating clock
of CPU. Reduces power dissipation of overall system
STOP mode
Low power dissipation mode
Low power dissipation HALT mode
These modes are programmable.
The macro service can be started in the HALT mode.
Figure 4-4. Status Transition of Standby Function
Notes 1.
NMI input means starting NMI by NMI pin input, watch interrupt, or key interrupt input.
2.
Unmasked interrupt request
Low power
dissipation mode
(subsystem
clock operation)
Normal
operation
Waits for
stabilization
of oscillation
Low power
dissipation
HALT mode
(standby)
STOP mode
(standby)
HALT mode
(standby)
Macro
service
NInu
Nt
Sso oedsaoHLmd
Sets low power dissipation mode
Restores normal operation
Edo siao tbiao eid
NMipt
Nt
RSTnu
SsTP
Unmasked
interrupt request
Ne
RIrS L
Macroservcereques
Endo oneprocessng
Endo macroservce
Mcosrierqet
Edo n rcsig
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