參數(shù)資料
型號(hào)： M37905M8C-XXXSP
元件分類(lèi)： 微控制器/微處理器
英文描述： 16-BIT, MROM, 20 MHz, MICROCONTROLLER, PDIP64
封裝： 0.750 INCH, 1.78 MM PITCH, PLASTIC, SDIP-64
文件頁(yè)數(shù)： 40/103頁(yè)
文件大?。?/td> 1402K
代理商： M37905M8C-XXXSP
PRELIMINAR
Y
Notice:
This
is not
a final
specification.
Some
parametric
limits
are
subject
to change.
40
M37905M4C-XXXFP, M37905M4C-XXXSP
M37905M6C-XXXFP, M37905M6C-XXXSP
M37905M8C-XXXFP, M37905M8C-XXXSP
16-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
When writing data to the dead-time timer (address A716), the data is
written to the reload register shared by three dead-time timers.
When the dead-time timers catch the start trigger from the respec-
tive timers, the reload register contents are transferred to its counter
and the dead-time timer decrements with the clock source selected
by bits 6 and 7 of three-phase output data register 0 (address A816).
Additionally, this timer can accept another trigger before completion
of the preceding trigger operation. In this case, after transferring the
reload register contents to the dead-time timer at acceptance of the
trigger, the value is decremented.
The dead-time timer operates as a one-shot pulse timer. Accordingly,
this timer starts pulse output when the trigger is caught, and finishes
pulse output and stops operation when its contents become “0016”,
and waits next trigger.
Three-phase output data register 0
A816
76543210
×
Address
W-phase output fix bit
0 : Released from output fixation
1 : Output fixed
V-phase output fix bit
0 : Released from output fixation
1 : Output fixed
U-phase output fix bit
0 : Released from output fixation
1 : Output fixed
When three-phase mode 0 is selected:
W-phase output polarity set buffer
0 : “H” output
1 : “L” output
When three-phase mode 1 is selected:
It may be either “0” or “1”.
In three-phase waveform mode, these bits
are invalid.
Any of them may be either “0” or “1”.
Clock-source-of-dead-time-timer select bits
0 0 : f2
0 1 : f4
1 0 : f8
1 1 : Do not select.
×
W-phase fixed output’s polarity set bit
0 : “H” output fixed
1 : “L” output fixed
V-phase fixed output’s polarity set bit
0 : “H” output fixed
1 : “L” output fixed
U-phase fixed output’s polarity set bit
0 : “H” output fixed
1 : “L” output fixed
In three-phase waveform mode, this bit is invalid.
It may be either “0” or “1”.
When three-phase mode 0 is selected:
V-phase output polarity set buffer
0 : “H” output
1 : “L” output
When three-phase mode 1 is selected:
Interrupt request interval set bit
0 : Every second time
1 : Every fourth time
When three-phase mode 0 is selected:
U-phase output polarity set buffer
0 : “H” output
1 : “L” output
When three-phase mode 1 is selected:
Interrupt validity output select bit
0 : An interrupt request occurs at each
even-numbered underflow of timer A3.
1 : An interrupt request occurs at each
odd-numbered underflow of timer A3.
In three-phase waveform mode, these bits are invalid.
Any of them may be either “0” or “1”.
Three-phase output data register 1
A916
76543210
×
Address
×
Fig. 44 Bit configuration of three-phase output data registers 1 and 0 in three-phase waveform mode
In the three-phase waveform mode, setting bit 7 of the waveform
output mode register (address A616) to “1” makes positive wave-
forms (U, V, W phases) and their negative waveforms (U, V, W
phases) output from the respective ports. When this bit is “0”, their
ports are floating. This bit is cleared to “0” by inputting a falling edge
to pin P6OUTCUT, by reset, or by executing instructions.
Additionally, setting bits 2 through 0 of the three-phase output data
register 0 (address A816) to “1” makes the corresponding waveform
outputs fixed. Whether the outputs are fixed to “H” or “L” is selected
by bits 2 through 0 of the three-phase output data register 1 (address
A916). Clearing these bits to “0” makes the corresponding waveform
outputs fixed to “H”; setting these bits to “1” makes the outputs fixed
to “L”.
相關(guān)PDF資料
PDF描述
M37905M8C-XXXFP 16-BIT, MROM, 20 MHz, MICROCONTROLLER, PQFP64
M37905M6C-XXXSP 16-BIT, MROM, 20 MHz, MICROCONTROLLER, PDIP64
M37906M4H-XXXFP 16-BIT, MROM, 20 MHz, MICROCONTROLLER, PDSO42
M37906M6C-XXXFP 16-BIT, MROM, 20 MHz, MICROCONTROLLER, PDSO42
M37906M8C-XXXFP 16-BIT, MROM, 20 MHz, MICROCONTROLLER, PDSO42
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