ATSAM3S-EK Atmel, ATSAM3S-EK Datasheet - Page 193
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ATSAM3S-EK
Manufacturer Part Number
ATSAM3S-EK
Description
KIT EVAL FOR ATSAM3S4C
Manufacturer
Atmel
Series
SAM3Sr
Type
MCUr
Specifications of ATSAM3S-EK
Contents
Board, Cables, Power Supply
Silicon Manufacturer
Atmel
Core Architecture
ARM
Core Sub-architecture
Cortex-M3
Kit Contents
Board
Features
TFT Colour LCD Display, SD/MMC Interface
Svhc
No SVHC (15-Dec-2010)
Rohs Compliant
Yes
For Use With/related Products
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATSAM3S-EK
Manufacturer:
Atmel
Quantity:
135
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10.22.2
• RELOAD
Value to load into the VAL register when the counter is enabled and when it reaches 0, see
value”
10.22.2.1
6500C–ATARM–8-Feb-11
31
23
15
.
7
SysTick Reload Value Register
Calculating the RELOAD value
30
22
14
6
The LOAD register specifies the start value to load into the VAL register. See the register sum-
mary in
The RELOAD value can be any value in the range 0x00000001-0x00FFFFFF. A start value of 0
is possible, but has no effect because the SysTick exception request and COUNTFLAG are acti-
vated when counting from 1 to 0.
The RELOAD value is calculated according to its use:
• To generate a multi-shot timer with a period of N processor clock cycles, use a RELOAD
• To deliver a single SysTick interrupt after a delay of N processor clock cycles, use a RELOAD
value of N-1. For example, if the SysTick interrupt is required every 100 clock pulses, set
RELOAD to 99.
of value N. For example, if a SysTick interrupt is required after 400 clock pulses, set RELOAD
to 400.
Table 10-33 on page 191
29
21
13
5
28
20
12
4
-RELOAD
Reserved
RELOAD
RELOAD
for its attributes. The bit assignments are:
27
19
11
3
26
18
10
2
SAM3S Preliminary
“Calculating the RELOAD
25
17
9
1
24
16
8
0
193
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