ATSAM3U-EK Atmel, ATSAM3U-EK Datasheet - Page 207
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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13.21 System timer, SysTick
Table 13-33. System timer registers summary
1.
6430D–ATARM–25-Mar-11
Address
0xE000E010
0xE000E014
0xE000E018
0xE000E01C
SysTick calibration value.
Name
CTRL
LOAD
VAL
CALIB
The processor has a 24-bit system timer, SysTick, that counts down from the reload value to
zero, reloads (wraps to) the value in the LOAD register on the next clock edge, then counts
down on subsequent clocks.
When the processor is halted for debugging the counter does not decrement.
The system timer registers are:
Type
RW
RW
RW
RO
Required
privilege
Privileged
Privileged
Privileged
Privileged
Reset
value
0x00000004
0x00000000
0x00000000
0x0002904
(1)
Description
“SysTick Control and Status Register” on page 208
“SysTick Reload Value Register” on page 209
“SysTick Current Value Register” on page 210
“SysTick Calibration Value Register” on page 211
SAM3U Series
207
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