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參數(shù)資料
| 型號： | M34282E2 |
| 廠商： | Mitsubishi Electric Corporation |
| 英文描述： | SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| 中文描述： | 單芯片4位微機的CMOS |
| 文件頁數(shù)： | 15/70頁 |
| 文件大?。?/td> | 560K |
| 代理商： | M34282E2 |
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MITSUBISHI
ELECTRIC
PRELIMINARY
Notice: This is not a final specification.
change.
Some parametric limits are subject to
15
MITSUBISHI MICROCOMPUTERS
4282 Group
SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
Fig. 16 Timer 2 count start/stop timing
(R2L)
(R2H)
(R2L)
Timer 2 count value
(Reload register)
Timer 2 underflow signal
CARRYD
Timer 2 count start timing
Timer 2 count start timing
Instruction clock
=f(X
IN
)/8
Machine cycle
TV2A instruction execution cycle (V2
0
)
←
1
X
IN
X
IN
/2
(Count source selected)
02
16
01
16
00
16
02
16
03
16
02
16
01
16
00
16
03
16
Timer 2 count value
(Reload register)
Timer 2 underflow signal
CARRYD
Timer 2 count stop timing
Timer 2 count stop timing
Machine cycle
TV2A instruction execution cycle (V2
0
)
←
0
X
IN
/2
(Count source selected)
02
16
02
16
01
16
00
16
02
16
01
16
00
16
02
16
01
16
00
16
03
16
00
16
(R2H)
(R2L)
03
16
(R2H)
(R2L)
(Note 1)
Mi
Mi + 1
Mi + 2
Mi
Mi + 1
Mi + 2
Instruction clock
=f(X
IN
)/8
Register V2
0
Register V2
0
X
IN
G
In this case, the following is set;
To expand
“
H
”
interval of carrier wave is invalid (V2
3
=
“
0
”
),
Timer 2 carrier wave generation function is valid (V2
2
=
“
1
”
),
Count source X
IN
/2 selected (V2
1
=
“
1
”
),
“
L
”
interval (03
16
) of carrier wave is set to reload register R2L
“
H
”
interval (02
16
) of carrier wave is set to reload register R2H
Notes 1: When the carrier wave generation function is vaild (V2
2
=
“
1
”
), avoid a timing
when timer 2 underflows to stop timer 2. When the timer 2 count stop occurs
at the same timing with the timer 2 underflows, hazard may occur in the carrier
wave output waveform.
2: When the timer 2 is stopped during
“
H
”
output of carrier wave while the carrier
wave generation function is valid, it is stopped after the
“
H
”
interval set by
reload register R2H is output.
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