ATSAM3U-EK Atmel, ATSAM3U-EK Datasheet - Page 891
ATSAM3U-EK
Manufacturer Part Number
ATSAM3U-EK
Description
KIT EVAL FOR AT91SAM3U CORTEX
Manufacturer
Atmel
Type
MCUr
Datasheets
1.ATSAM3U-EK.pdf
(2 pages)
2.ATSAM3U-EK.pdf
(61 pages)
3.ATSAM3U-EK.pdf
(1171 pages)
4.ATSAM3U-EK.pdf
(53 pages)
Specifications of ATSAM3U-EK
Contents
Board
Processor To Be Evaluated
SAM3U
Data Bus Width
32 bit
Interface Type
RS-232, USB
Operating Supply Voltage
3 V
Silicon Manufacturer
Atmel
Core Architecture
ARM
Core Sub-architecture
Cortex - M3
Silicon Core Number
SAM3U4E
Silicon Family Name
SAM3U
Kit Contents
Board CD Docs
Rohs Compliant
Yes
For Use With/related Products
AT91SAM3U
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATSAM3U-EK
Manufacturer:
Atmel
Quantity:
10
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38.6.5.5
6430D–ATARM–25-Mar-11
6430D–ATARM–25-Mar-11
Changing the Comparison Value and the Comparison Configuration
It is possible to change the comparison values and the comparison configurations while the
channel 0 is enabled (see
To prevent unexpected comparison match, the user must use the
Update Register”
PWM_CMPMUPDx) to change respectively the comparison values and the comparison configu-
rations while the channel 0 is still enabled. These registers hold the new values until the end of
the comparison update period (when CUPRCNT is equal to CUPR in
Register”
the next period.
CAUTION: to be taken into account, the write of the register PWM_CMPVUPDx must be fol-
lowed by a write of the register PWM_CMPMUPDx.
Note:
Figure 38-18. Synchronized Update of Comparison Values and Configurations
If the update registers PWM_CMPVUPDx and PWM_CMPMUPDx are written several times
between two updates, only the last written value are taken into account.
End of channel0 PWM period and
end of Comparison Update Period and
and PWM_CMPMx written
End of channel0 PWM period and
end of Comparison Update Period
(PWM_CMPMx) and the end of the current PWM period, then update the values for
and the
“PWM Comparison x Mode Update Register”
Section 38.6.3 ”PWM Comparison
PWM_CMPVUPDx Value
Comparison Value
for comparison x
PWM_CMPVx
User's Writing
Units”).
PWM_CMPMUPDx Value
Comparison configuration
“PWM Comparison x Value
for comparison x
SAM3U Series
SAM3U Series
“PWM Comparison x Mode
User's Writing
PWM_CMPMx
(PWM_CMPVUPDx and
891
891
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