st7pmc2s6 STMicroelectronics, st7pmc2s6 Datasheet - Page 281

• Manufacturer Part Number: st7pmc2s6
• Description: 8-bit Mcu For Automotive With Nested Interrupts, Flash, 10-bit Adc, Brushless Motor Control, 5 Timers, Spi, Linsci?
• Manufacturer: STMicroelectronics

ST7MC1K2-Auto, ST7MC1K6-Auto, ST7MC2S4-Auto, ST7MC2S6-Auto
Table 154. MDTG register description
1. Write once-only bit if PCN bit is set, read/write if PCN bit is reset. To clear the DTE bit if PCN = 1, it is
2. Write-once bits; once write-accessed these bits cannot be rewritten unless the processor is reset (see
Table 155. Deadtime generator set-up
1. This table is true on condition that the CKE bit is set (Peripheral clock enabled) and the MOE bit is set
When the PCN bit is reset (example, for PM BLDC motors), in Direct Access mode
(DAC = 1), if the DTE bit is reset, PWM signals can be applied on the MCOx outputs but not
complementary PWM. Of course, logical levels can be also applied on the outputs.
If the DTE bit is set (PCN = 0 and DAC = 1), channels are paired and complementary PWM
signals can be output on the MCOx pins. This follows the instructions detailed in
Deadtime generator outputs on page 249
In this case, the PWM application is selected by the OS0 bit in the MCRB register.
It is also possible to add a chopper on the PWM signal output using bits HFE[1:0] and
HFRQ[2:0] in the MREF register.
5:0 DTG[5:0]
Bit
7
6
mandatory to clear the PCN bit first.
“Caution: Access to write-once bits” on
(MCOx outputs enabled). See
DAC
Name
0
0
0
0
1
1
1
1
PCN
DTE
Number of PWM channels
Deadtime generator enable
Deadtime generator set-up
0: Only PWM U signal is output to the PWM manager for six-step mode motor
1: The three PWM signals U, V and W are output to the channel manager
0: Disable the deadtime generator
1: Enable the deadtime generator and apply complementary PWM signal to the
These bits set-up the deadtime duration and resolution. Refer to
page 247
With F
125ns, 250ns and 500ns.
MDTG register
PCN bit in
control (example, PM BLDC motors)
(example, for three-phase sinewave generation)
adjacent switch
mtc
0
0
1
1
0
0
1
1
for details.
= 16 MHz, deadtime values range from 125ns to 16µs with steps of
Table 127: Output configuration summary on page
page
MDTG register
DTE bit in
280).
(2)
(1)
0
1
1
0
0
1
1
0
(1)
as the channels are grouped in pairs.
Function
Yes, but WITHOUT deadtime
Yes, but WITHOUT deadtime
applied to adjacent switch
No Complementary PWM
Complementary PWM
267.
Yes
Yes
Yes
Yes
No
On-chip peripherals
Table 110 on
Table 111:
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