ATSAM3U-EK Atmel, ATSAM3U-EK Datasheet - Page 882
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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882
882
SAM3U Series
SAM3U Series
Sequence for Method 3:
1. Select the automatic write of duty-cycle values and automatic update by setting the field
2. Define the synchronous channels by the bits SYNCx in the PWM_SCM register.
3. Define the update period by the field UPR in the PWM_SCUP register.
4. Define when the WRDY flag and the corresponding PDC transfer request must be set in
5. Define the PDC transfer settings for the duty-cycle values and enable it in the PDC
6. Enable the synchronous channels by writing CHID0 in the PWM_ENA register.
7. If an update of the period value and/or of the dead-time values is required, write regis-
8. Set UPDULOCK to 1 in PWM_SCUC.
9. The update of these registers will occur at the beginning of the next PWM period. At
10. If an update of the update period value is required, check first that write of a new update
11. Write the register that needs to be updated (PWM_SCUPUPD).
12. The update of this register will occur at the next PWM period of the synchronous chan-
13. Check the end of the PDC transfer by the flag ENDTX. If the transfer has ended, define
UPDM to 2 in the PWM_SCM register.
the update period by the PTRM bit and the PTRCS field in the PWM_SCM register (at
the end of the update period or when a comparison matches).
registers
ters that need to be updated (PWM_CPRDUPDx, PWM_DTUPDx), else go to
this moment the bit UPDULOCK is reset, go to
value is possible by polling the flag WRDY (or by waiting for the corresponding inter-
rupt) in the PWM_ISR2 register, else go to
nels when the Update Period is elapsed. Go to
a new PDC transfer in the PDC registers for new duty-cycle values. Go to
Step 13.
Step 7.
Step 10.
for new values.
for new values.
6430D–ATARM–25-Mar-11
6430D–ATARM–25-Mar-11
Step 5.
Step 10.
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