AT32UC3C1512C Automotive Atmel Corporation, AT32UC3C1512C Automotive Datasheet - Page 972
AT32UC3C1512C Automotive
Manufacturer Part Number
AT32UC3C1512C Automotive
Description
Manufacturer
Atmel Corporation
Datasheets
1.AT90CAN128_AUTOMOTIVE.pdf
(225 pages)
2.AT32UC3C0512C_AUTOMOTIVE.pdf
(1312 pages)
3.AT32UC3C0512C_AUTOMOTIVE.pdf
(107 pages)
- AT90CAN128_AUTOMOTIVE PDF datasheet
- AT32UC3C0512C_AUTOMOTIVE PDF datasheet #2
- AT32UC3C0512C_AUTOMOTIVE PDF datasheet #3
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33.6.2.3
Figure 33-6. 2-bit Gray Up/Down Counter
33.6.2.4
9166C–AVR-08/11
PWML1
PWML0
PWMH0
PWMH1
DOWNx
2-bit Gray Up/Down Counter for Stepper Motor
Dead-Time Generator
It is possible to configure a couple of channels to provide a 2-bit gray count waveform on 2 out-
puts. Dead-Time generator and other downstream logic can be configured on these channels.
Up or down count mode can be configured on-the-fly by the SMMR register.
When GCEN0 is written to 1, channels 0 and 1 outputs are driven with gray counter.
The dead-time generator uses the comparator output OCx to provide the two complementary
outputs DTOHx and DTOLx, which allows the PWM to drive external power control switches
safely. When the dead-time generator is enabled by writing a one to the DTE bit in the
Mode Register” on page 1034
times) are inserted between the edges of the two complementary outputs DTOHx and DTOLx.
Note that enabling or disabling the dead-time generator is allowed only if the channel is
disabled.
The dead-time is adjustable by the
outputs of the dead-time generator can be adjusted separately by DTH and DTL. The dead-time
values can be updated synchronously to the PWM period by using the
Update Register” on page 1044
The dead-time is based on a specific counter which uses the same selected clock that feeds the
channel counter of the comparator. Depending on the edge and the configuration of the dead-
time, DTOHx and DTOLx are delayed until the counter has reached the value defined by DTH or
DTL. An inverted configuration bit (DTHI and DTLI bits in the CMRx register) is provided for each
outputs to invert the dead-times outputs. The following figure shows the waveform of the dead-
time generator.
GCEN0 = 1
(CMRx), dead-times (also called dead-bands or non-overlapping
(DTUPDx).
”Channel Dead Time Register” on page 1043
”Channel Dead Time
AT32UC3C
(DTx), both
”Channel
972
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