ATSAM3U-EK Atmel, ATSAM3U-EK Datasheet - Page 326
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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22.2.4
22.2.4.1
Table 22-4.
22.2.4.2
326
Step
1
2
3
4
5
6
SAM3U Series
Programmer Handshaking
Programmer Action
Sets MODE and DATA signals
Clears NCMD signal
Waits for RDY low
Releases MODE and DATA signals
Sets NCMD signal
Waits for RDY high
Write Handshaking
Read Handshaking
Write Handshake
A handshake is defined for read and write operations. When the device is ready to start a new
operation (RDY signal set), the programmer starts the handshake by clearing the NCMD signal.
The handshaking is achieved once NCMD signal is high and RDY is high.
For details on the write handshaking sequence, refer to
Figure 22-2. Parallel Programming Timing, Write Sequence
For details on the read handshaking sequence, refer to
• Apply XIN clock
• Wait for 20 ms
• Start a read or write handshaking.
MODE[3:0]
DATA[15:0]
NVALID
NCMD
NOE
RDY
1
Waits for NCMD low
Latches MODE and DATA
Clears RDY signal
Executes command and polls NCMD high
Executes command and polls NCMD high
Sets RDY
Device Action
2
3
Figure 22-3
Figure 22-2
4
5
and
and
Data I/O
Input
Input
Input
Input
Input
Input
Table
Table
6430D–ATARM–25-Mar-11
22-5.
22-4.
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