ATSAM3U-EK Atmel, ATSAM3U-EK Datasheet - Page 388

• Manufacturer Part Number: ATSAM3U-EK
• Description: KIT EVAL FOR AT91SAM3U CORTEX
• Manufacturer: Atmel
• Type: MCUr

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

25.16.2.4
• Name: NFCDATA_Status
• Access: Read
• Reset: 0x00000000
• CMD1: Command Register Value for Cycle 1
When a Read or Write Access occurs, the Physical Memory Interface drives the IO bus with CMD1 field during the Com-
mand Latch cycle 1.
• CMD2: Command Register Value for Cycle 2
When VCMD2 field is set to true, the Physical Memory Interface drives the IO bus with CMD2 field during the Command
Latch cycle 2.
• VCMD2: Valid Cycle 2 Command
When set to true, the CMD2 field is issued after addressing cycle.
• ACYCLE: Number of Address required for the current command
When ACYCLE field is different from zero, ACYCLE Address cycles are performed after Command Cycle 1.
• CSID: Chip Select Identifier
Chip select used
• NFCEN: NFC Enable
When set to true, The NFC is enabled.
• NFCWR: NFC Write Enable
0: The NFC is in read mode.
1: The NFC is in write mode.
• NFCBUSY: NFC Busy Status Flag
If set to true, it indicates that the NFC is busy.
388
388
31
23
15
–
7
SAM3U Series
SAM3U Series
CSID
NFC DATA Status
30
22
14
–
6
29
21
13
–
5
CMD2
CMD1
ACYCLE
28
20
12
–
4
NFCBUSY
27
19
11
3
NFCWR
VCMD2
26
18
10
2
NFCEN
25
17
9
1
–
6430D–ATARM–25-Mar-11
6430D–ATARM–25-Mar-11
CMD2
CMD1
CSID
24
16
8
0
–