參數(shù)資料
型號(hào): UPD753016
廠商: NEC Corp.
元件分類: 4位微控制器
英文描述: 4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER
中文描述: 4位單片機(jī)的小型通用紅外遙控器
文件頁數(shù): 38/80頁
文件大?。?/td> 569K
代理商: UPD753016
38
μ
PD753012, 753016, 753017
8. STANDBY FUNCTION
In order to save power consumption while a program is in a standby mode, two types of standby modes (STOP
mode and HALT mode) are provided for the
μ
PD753017.
Table 8-1. Operation Status in Standby Mode
STOP Mode
HALT Mode
Set instruction
STOP instruction
HALT instruction
System clock when set
Settable only when the main system
clock is used.
Settable both by the main system
clock and subsystem clock.
Operation
status
Clock generator
Only the main system clock stops
oscillation.
Only the CPU
Φ
halts (oscillation
continues).
Basic interval timer
Operation stops
Operation.
Note 1
BT mode : Sets IRQBT at reference
time intervals.
WT mode: Generates reset signal
when BT overflows.
Serial interface
Operable only when an external SCK
input is selected as the serial clock.
Operable
Note 1
Timer/event counter
Operable only when a signal input to
the TI0-TI2 pins is specified as the
count clock.
Operable
Note 1
Watch timer
Operable when f
XT
is selected as the
count clock.
Operable
LCD controller/driver
Operable only when f
XT
is selected as
the LCDCL.
Operable
External interrupt
The INT1, 2, and 4 are operable.
Only the INT0 is not operated.
Note 2
CPU
The operation stops.
Release signal
Interrupt request signal sent from the operable hardware enabled by the
interrupt enable flag or RESET signal input.
Notes 1.
Cannot operate only when the main system clock stops.
Can operate only when the noise eliminator is not used (IM02 = 1) by bit 2 of the edge detection mode
register(IM0).
2.
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