<s>
AT91CAP	B-Device
(	O
AT91CAP	B-Device
Customizable	O
Atmel	O
Microcontrollers	B-Architecture
)	O
is	O
a	O
family	O
of	O
Atmel	O
microcontrollers	B-Architecture
based	O
on	O
the	O
32-bit	O
RISC	B-Architecture
microprocessors	O
from	O
ARM	B-Architecture
.	O
</s>
<s>
They	O
include	O
a	O
block	O
of	O
metal-programmable	O
logic	O
gates	O
(	O
MP	O
Block	O
)	O
that	O
can	B-Protocol
be	O
personalized	O
by	O
the	O
application	O
developer	O
.	O
</s>
<s>
The	O
MP	O
Block	O
can	B-Protocol
contain	O
one	O
or	O
more	O
additional	O
processor	B-General_Concept
cores	O
,	O
additional	O
peripherals	B-Device
or	O
interfaces	B-Application
,	O
or	O
application-specific	O
logic	O
such	O
as	O
a	O
GPS	O
correlator	O
.	O
</s>
<s>
CAP	O
products	O
feature	O
embedded	O
SRAM	B-Architecture
and	O
ROM	B-Device
memories	I-Device
and	O
an	O
external	O
bus	O
for	O
additional	O
memories	O
including	O
flash	B-Device
memory	I-Device
,	O
together	O
with	O
a	O
number	O
of	O
peripherals	B-Device
and	O
standard	O
communications	O
and	O
networking	B-Architecture
interfaces	B-Application
.	O
</s>
<s>
This	O
qualifies	O
them	O
as	O
system-on-a-chip	B-Architecture
devices	O
.	O
</s>
<s>
External	O
interfaces	B-Application
include	O
USB	B-Protocol
,	O
CAN	B-Protocol
,	O
Ethernet	O
,	O
SPI	B-Architecture
,	O
USART	O
and	O
ADC	O
.	O
</s>
<s>
A	O
DMA	B-General_Concept
controller	I-General_Concept
provides	O
direct	O
communication	O
channels	O
between	O
external	O
interfaces	B-Application
and	O
memories	O
,	O
increasing	O
data	O
throughput	O
with	O
minimal	O
processor	B-General_Concept
intervention	O
.	O
</s>
<s>
Peripherals	B-Device
include	O
counter/timers	O
,	O
power-on	B-Application
reset	I-Application
generators	O
,	O
voltage	O
regulators	O
and	O
advanced	O
interrupt	B-Architecture
controller	I-Architecture
.	O
</s>
<s>
This	O
enhances	O
the	O
real	B-General_Concept
time	I-General_Concept
performance	O
of	O
the	O
processor	B-General_Concept
.	O
</s>
<s>
A	O
power	O
management	O
controller	O
keeps	O
power	O
consumption	O
to	O
a	O
minimum	O
by	O
powering	O
down	O
unused	O
peripherals	B-Device
and	O
interfaces	B-Application
,	O
and	O
enabling	O
the	O
processor	B-General_Concept
to	O
be	O
put	O
in	O
standby	O
mode	O
.	O
</s>
<s>
The	O
AT91CAP	B-Device
comes	O
in	O
both	O
ARM7	O
and	O
ARM9	O
versions	O
.	O
</s>
<s>
The	O
CAP	O
design	O
flow	O
emphasizes	O
parallel	O
hardware/software	O
development	O
.	O
</s>
<s>
An	O
FPGA-based	O
emulation	B-Application
board	O
enables	O
the	O
hardware	B-Architecture
and	O
software	B-Application
of	O
the	O
application	O
under	O
development	O
to	O
be	O
thoroughly	O
tested	O
at	O
close	O
to	O
full	O
operational	O
speed	O
in	O
order	O
to	O
validate	O
the	O
functionality	O
of	O
the	O
device	O
.	O
</s>
