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參數(shù)資料
| 型號： | M34512M2 |
| 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)： | 25/80頁 |
| 文件大?。?/td> | 760K |
| 代理商： | M34512M2 |
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25
4512 Group
SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
PRELIMINARY
Notice: This is not a final specification.
change.
Some parametric limits are subject to
(6) Timer 3 (interrupt function)
Timer 3 is an 8-bit binary down counter with the timer 3 reload reg-
ister (R3). Data can be set simultaneously in timer 3 and the reload
register (R3) with the T3AB instruction. Data can be written to re-
load register (R3) with the TR3AB instruction.
When writing data to reload register R3 with the TR3AB instruc-
tion, the downcount after the underflow is started from the setting
value of reload register R3.
Timer 3 starts counting after the following process;
set data in timer 3,
select the count source with the bits 0 and 1 of register W3, and
set the bit 3 of register W3 to “1.”
However, INT1 pin input can be used as the start trigger for timer
3 count operation by setting the bit 2 of register W3 to “1.”
When a value set is n, timer 3 divides the count source signal by n
+ 1 (n = 0 to 255).
Once count is started, when timer 3 underflows (the next count
pulse is input after the contents of timer 3 becomes “0”), the timer
3 interrupt request flag (T3F) is set to “1,” new data is loaded from
reload register R3, and count continues (auto-reload function).
Data can be read from timer 3 with the TAB3 instruction. When
reading the data, stop the counter and then execute the TAB3 in-
struction.
(7) Timer 4 (interrupt function)
Timer 4 is an 8-bit binary down counter with the timer 4 reload reg-
ister (R4). Data can be set simultaneously in timer 4 and the reload
register (R4) with the T4AB instruction.
Timer 4 starts counting after the following process;
set data in timer 4,
select the count source with the bits 0 and 1 of register W4, and
set the bit 3 of register W4 to “1.”
When a value set is n, timer 4 divides the count source signal by n
+ 1 (n = 0 to 255).
Once count is started, when timer 4 underflows (the next count
pulse is input after the contents of timer 4 becomes “0”), the timer
4 interrupt request flag (T4F) is set to “1,” new data is loaded from
reload register R4, and count continues (auto-reload function).
Data can be read from timer 4 with the TAB4 instruction. When
reading the data, stop the counter and then execute the TAB4 in-
struction.
(8) Timer interrupt request flags (T1F, T2F,
T3F, and T4F)
Each timer interrupt request flag is set to “1” when each timer
underflows. The state of these flags can be examined with the skip
instructions (SNZT1, SNZT2, SNZT3, and SNZT4).
Use the interrupt control registers V1, V2 to select an interrupt or a
skip instruction.
An interrupt request flag is cleared to “0” when an interrupt occurs
or when the next instruction is skipped with a skip instruction.
(9) Count start synchronization circuit (timer
1, timer 3)
Each of timer 1 and timer 3 has the count start synchronous circuit
which synchronizes P3
0
/INT0 pin and P3
1
/INT1 pin, respectively,
and can start the timer count operation.
Timer 1 count start synchronous circuit function is selected by set-
ting the bit 0 of register W1 to “1.” The control by P3
0
/INT0 pin
input can be performed by setting the bit 0 of register I1 to “1.”
The count start synchronous circuit is set by level change (“H”
→
“L”
or “L”
→
“H”) of P3
0
/INT0 pin input. This valid waveform is selected
by bits 1 (I1
1
) and 2 (I1
2
) of register I1 as follows;
I1
1
= “0”: Synchronized with one-sided edge (falling or rising)
I1
1
= “1”: Synchronized with both edges (both falling and rising)
When register I1
1
=“0” (synchronized with the one-sided edge), the ris-
ing or falling waveform can be selected by bit 2 of register I1;
I1
2
= “0”: Falling waveform
I1
2
= “1”: Rising waveform
Timer 3 count start synchronous circuit function is selected by set-
ting the bit 2 of register W3 to “1.” The control by P3
1
/INT1 pin
input can be performed by setting the bit 0 of register I2 to “1.”
The count start synchronous circuit is set by level change (“H”
→
“L”
or “L”
→
“H”) of P3
1
/INT1 pin input. This valid waveform is selected
by bits 1 (I2
1
) and 2 (I2
2
) of register I2 as follows;
I2
1
= “0”: Synchronized with one-sided edge (falling or rising)
I2
1
= “1”: Synchronized with both edges (both falling and rising)
When register I2
1
=“0” (synchronized with the one-sided edge), the ris-
ing or falling waveform can be selected by bit 2 of register I2;
I2
2
= “0”: Falling waveform
I2
2
= “1”: Rising waveform
When timer 1 and timer 3 count start synchronous circuits are
used, the count start synchronous circuits are set, the count source
is input to each timer by inputting valid waveform to P3
0
/INT0 pin
and P3
1
/INT1 pin. Once set, the count start synchronous circuit is
cleared by clearing the bit I1
0
or I2
0
to “0” or reset.
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| M34513M2 | Hook-Up Wire; Conductor Size AWG:26; No. Strands x Strand Size:7 x 34; Jacket Color:White; Approval Bodies:UL, CSA; Approval Categories:UL AWM Style 1061; CSA AWM; Conductor Material:Copper; Jacket Material:Polyvinylchloride (PVC) RoHS Compliant: Yes |
| M34513M2-420FP | Hook-Up Wire; Conductor Size AWG:26; No. Strands x Strand Size:7 x 34; Jacket Color:Black; Approval Bodies:UL, CSA; Approval Categories:UL AWM Style 1061; CSA AWM; Conductor Material:Copper; Jacket Material:Polyvinylchloride (PVC) RoHS Compliant: Yes |
| M34513M4 | Hook-Up Wire; Conductor Size AWG:26; No. Strands x Strand Size:7 x 34; Jacket Color:Dark Blue; Approval Bodies:UL, CSA; Approval Categories:UL AWM Style 1061; CSA AWM; Conductor Material:Copper RoHS Compliant: Yes |
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參數(shù)描述 |
|---|---|
| M34512M2-XXXFP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
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| M34512M4-XXXFP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
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| M34513E4FP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
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