ATSAM3U-EK Atmel, ATSAM3U-EK Datasheet - Page 885
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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Figure 38-14. Comparison Waveform
6430D–ATARM–25-Mar-11
6430D–ATARM–25-Mar-11
Comparison Update
Comparison Match
CVMVUPD
CUPRUPD
CUPRCNT
CTRUPD
CPRUPD
CPRCNT
CVUPD
CCNT0
CMPM
CMPU
CUPR
CVM
CPR
CTR
CV
0x6
0x1
0x1
0x3
0x6
0x1
0x1
0x3
0x0
0x0
The update of the comparison x configuration and the comparison x value is triggered periodi-
cally after the comparison x update period. It is defined by the field CUPR in the PWM_CMPMx.
The comparison unit has an update period counter independent from the period counter to trig-
ger this update. When the value of the comparison update period counter CUPRCNT (in
PWM_CMPMx) reaches the value defined by CUPR, the update is triggered. The comparison x
update period CUPR itself can be updated while the channel 0 is enabled by using the
PWM_CMPMUPDx register.
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.
The comparison match and the comparison update can be source of an interrupt, but only if it is
enabled and not masked. These interrupts can be enabled by the
ter 2”
and the comparison update interrupt are reset by reading the
and disabled by the
0x1
0x1
0x2
0x2
0x0
0x2
0x3
0x2
0x3
0x1
“PWM Interrupt Disable Register
0x2
0x2
0x0
0x3
0x2
0x0
0x1
0x1
0x2
0x2
0x0
0x3
0x6
0x1
0x0
2”. The comparison match interrupt
“PWM Interrupt Status Register
0x2
0x1
“PWM Interrupt Enable Regis-
SAM3U Series
SAM3U Series
0x6
0x0
0x2
0x1
0x3
885
885
2”.
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