Atmel SAM4L Xplained Pro Starter Kit Atmel ATSAM4L-XSTK ATSAM4L-XSTK Data Sheet
Product codes
ATSAM4L-XSTK
82
42023ES–SAM–07/2013
ATSAM4L8/L4/L2
8.9.11.2
Status Register
Name:
SR
Access Type:
Read-Only
Offset:
0x04
Reset Value:
0x00000000
• STATE: State
• DBGP: Debugger present
1: A debugger is present (TCK falling edge detected)
0: No debugger is present
• PROT: Protected
1: The protected state is set. The only way to overcome this is to issue a Chip Erase command.
0: The protected state is not set
• EN: Enabled
1: The block is in ready for operation
0: the block is disabled. Write operations are not possible until the block is enabled by writing a one in CR.EN.
• LCK: Lock
1: An operation could not be performed because chip protected state is on.
0: No security issues have been detected sincle last clear of this bit
• FAIL: Failure
1: The requested operation failed
0: No failure has been detected sincle last clear of this bit
• BERR: Bus Error
1: A bus error occured due to the unability to access part of the requested memory area.
31
30
29
28
27
26
25
24
-
-
-
-
-
STATE
23
22
21
20
19
18
17
16
-
-
-
-
-
-
-
-
15
14
13
12
11
10
9
8
-
-
-
-
-
DBGP
PROT
EN
7
6
5
4
3
2
1
0
-
-
-
LCK
FAIL
BERR
HCR
DONE
Value
State
Description
0
IDLE
Idle state
1
CE
Chip erase operation is ongoing
2
CRC32
CRC32 operation is ongoing
3
FSPR
Flash User Page Read
4-7
-
reserved