SAM3N00A Atmel Corporation, SAM3N00A Datasheet - Page 297
SAM3N00A
Manufacturer Part Number
SAM3N00A
Description
Manufacturer
Atmel Corporation
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19.2.5
19.2.5.1
11011A–ATARM–04-Oct-10
Device Operations
Flash Read Command
Several commands on the Flash memory are available. These commands are summarized in
Table 19-3 on page
face running several read/write handshaking sequences.
When a new command is executed, the previous one is automatically achieved. Thus, chaining
a read command after a write automatically flushes the load buffer in the Flash.
In the following tables,
This command is used to read the contents of the Flash memory. The read command can start
at any valid address in the memory plane and is optimized for consecutive reads. Read hand-
shaking can be chained; an internal address buffer is automatically increased.
Table 19-6.
Table 19-7.
Step
1
2
3
4
5
...
n
n+1
n+2
n+3
...
Step
1
2
3
4
5
6
7
...
n
• DATA[15:0] pertains to ASAM3NxB/C (64/100 pins)
• DATA[7:0] pertains to SAM3BxA (48 pins)
Handshake Sequence
Write handshaking
Write handshaking
Write handshaking
Read handshaking
Read handshaking
...
Write handshaking
Write handshaking
Read handshaking
Read handshaking
...
Handshake Sequence
Write handshaking
Write handshaking
Write handshaking
Write handshaking
Write handshaking
Read handshaking
Read handshaking
...
Write handshaking
Read Command
Read Command
293. Each command is driven by the programmer through the parallel inter-
Table 19-6
through
MODE[3:0]
CMDE
ADDR0
ADDR1
DATA
DATA
...
ADDR0
ADDR1
DATA
DATA
...
MODE[3:0]
CMDE
ADDR0
ADDR1
ADDR2
ADDR3
DATA
DATA
...
ADDR0
Table 19-17
DATA[15:0]
READ
Memory Address LSB
Memory Address
*Memory Address++
*Memory Address++
...
Memory Address LSB
Memory Address
*Memory Address++
*Memory Address++
...
DATA[7:0]
READ
Memory Address LSB
Memory Address
Memory Address
Memory Address
*Memory Address++
*Memory Address++
...
Memory Address LSB
SAM3N
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