參數(shù)資料
型號(hào): UPD17227GT
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(yè)數(shù): 49/84頁(yè)
文件大?。?/td> 393K
代理商: UPD17227GT
μ
PD17225, 17226, 17227, 17228
49
Data Sheet U12643EJ2V0DS00
8.4
STOP Instruction Execution Conditions
The STOP instruction can be executed, only under special conditions, as shown in Table 8-5, to prevent the program
from hang-up.
If the conditions in Table 8-5 are not satisfied, the STOP instruction is treated as an NOP instruction.
Table 8-5. STOP Instruction Execution Conditions
Operand Value
Execution Conditions
1000B (08H)
High level input for all P0A
0
-P0A
3
and P0B
0
-P0B
3
pins
Other Than Above
Setting prohibited
8.5
Releasing Standby Mode
Operations for releasing the STOP and HALT modes will be as shown in Figure 8-1.
Figure 8-1. Operations After Standby Mode Release
(a)
Releasing STOP mode by interrupt
Stanby
release signal
STOP
instruction
Wait
(time set by TMM)
Operation
mode
STOP mode
HALT mode
Operation
mode
Clock
Oscillation
Oscillation stops
Oscillation
(b)
Releasing HALT mode by interrupt
HALT
instruction
Stanby
release signal
Clock
Operation
mode
Operation
mode
HALT mode
Oscillation
Remark
The dotted line indicates the operation to be performed when the interrupt request, releasing the standby
mode, has been accepted.
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