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参数资料
| 型号： | UPD62AMC-XXX-5A4-A |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 4-BIT, MROM, 4 MHz, MICROCONTROLLER, PDSO20 |
| 封装： | 0.300 INCH, PLASTIC, SSOP-20 |
| 文件页数： | 17/62页 |
| 文件大小： | 272K |
| 代理商： | UPD62AMC-XXX-5A4-A |
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24
PD62A
Data Sheet U14474EJ2V0DS00
Table 5-3. Standby Mode Settings (HALT #b3b2b1b0B) and Release Conditions
Operand Value of
HALT Instruction
Setting Mode
Setting Precondition
Release Condition
b3
b2
b1
b0
0000
STOP
All KI/O pins are high-level output.
High level input to at least one
of KI pins.
0
1
STOP
All KI/O pins are high-level output.
High level input to at least one
of KI pins.
1
0
STOPNote 1
The KI/O0 pin is high-level output.
High level input to at least one
of KI pins.
1
Any combination of
STOP
[The following condition is added in addition to the above.]
b2b1b0 above
—
High level input to at least one
of S0 and S1 pinsNote 2.
0/1
1
0
1
HALT
—
When the timer’s down counter is 0
Notes 1. When setting HALT #
×110B, configure a key matrix by using the KI/O0 pin and the KI pin so that an
internal reset takes effect at the time of program hang-up.
2. At least one of the S0 and S1 pins (the pin used for releasing standby) must be in input mode. (Note
that an internal reset does not take effect even when both pins are in output mode.)
Cautions 1. The internal reset takes effect when the HALT instruction is executed with an operand value
other than that above or when the precondition has not been satisfied when executing the
HALT instruction.
2. If STOP mode is set when the timer’s down counter is not 0 (timer operating), the system
is placed in STOP mode only after all the 10 bits of the timer’s down counter and the timer
output permit flag are cleared to 0.
3. Write the NOP instruction as the first instruction after STOP mode is released.
5.3 Standby Mode Release Timing
(1) STOP mode release timing
Figure 5-1. STOP Mode Cancelation by Release Condition
Caution When a release condition is established in the STOP mode, the device is released from the STOP
mode, and goes into a wait state. At this time, if the release condition is not held, the device
goes into STOP mode again after the wait time has elapsed. Therefore, when releasing the STOP
mode, it is necessary to hold the release condition longer than the wait time.
Wait
(52/fX +
α)
HALT mode
Operating
mode
STOP mode
Oscillation
stopped
Oscillation
Operating
mode
Oscillation
HALT instruction
(STOP mode)
Standby
release signal
Clock
α : Oscillation growth time
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