ATSAM3S-EK Atmel, ATSAM3S-EK Datasheet - Page 297
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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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Table 18-3.
18.3.3.2
6500C–ATARM–8-Feb-11
Symbol
FL_ID
FL_SIZE
FL_PAGE_SIZE
FL_NB_PLANE
FL_PLANE[0]
...
FL_PLANE[FL_NB_PLANE-1]
FL_NB_LOCK
FL_LOCK[0]
...
Write Commands
Flash Descriptor Definition
ations to the EEFC_FRR register are done after the last word of the descriptor has been
returned, then the EEFC_FRR register value is 0 until the next valid command.
Several commands can be used to program the Flash.
Flash technology requires that an erase is done before programming. The full memory plane can
be erased at the same time, or several pages can be erased at the same time (refer to
”The Partial Programming mode works only with 128-bit (or higher) boundaries. It cannot be
used with boundaries lower than 128 bits (8, 16 or 32-bit for
be automatically done before a page write using EWP or EWPL commands.
After programming, the page (the whole lock region) can be locked to prevent miscellaneous
write or erase sequences. The lock bit can be automatically set after page programming using
WPL or EWPL commands.
Data to be written are stored in an internal latch buffer. The size of the latch buffer corresponds
to the page size. The latch buffer wraps around within the internal memory area address space
and is repeated as many times as the number of pages within this address space.
Note:
Write operations are performed in a number of wait states equal to the number of wait states for
read operations.
Data are written to the latch buffer before the programming command is written to the Flash
Command Register EEFC_FCR. The sequence is as follows:
• Write the full page, at any page address, within the internal memory area address space.
• Programming starts as soon as the page number and the programming command are written
• When programming is completed, the FRDY bit in the Flash Programming Status Register
to the Flash Command Register. The FRDY bit in the Flash Programming Status Register
(EEFC_FSR) is automatically cleared.
(EEFC_FSR) rises. If an interrupt has been enabled by setting the bit FRDY in EEFC_FMR,
the corresponding interrupt line of the NVIC is activated.
Writing of 8-bit and 16-bit data is not allowed and may lead to unpredictable data corruption.
Word Index
0
1
2
3
4
4 + FL_NB_PLANE - 1
4 + FL_NB_PLANE + 1
4 + FL_NB_PLANE
Description
Flash Interface Description
Flash size in bytes
Page size in bytes
Number of planes.
Number of bytes in the first plane.
Number of bytes in the last plane.
Number of lock bits. A bit is associated
with a lock region. A lock bit is used to
prevent write or erase operations in the
lock region.
Number of bytes in the first lock region.
SAM3S Preliminary
example).”). Also, a page erase can
Section
297
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