SAM4L Datasheet, PDF (760/1185 Pages) ATMEL Corporation – ATSAM ARM-based Flash MCU

28.9.7 Status Register
Name:
SR
Access Type:
Read-only
Offset:
0x18
Reset Value:
0x000000002
31
30
29
28
27
26
-
-
-
-
-
-
23
22
21
20
19
18
BTF
REP
STO
SMBDAM
SMBHHM
-
15
14
13
12
11
10
-
BUSERR SMBPECERR SMBTOUT
-
-
7
6
5
ORUN
URUN
TRA
4
3
2
-
TCOMP
SEN
• BTF: Byte Transfer Finished
This bit is cleared when the corresponding bit in SCR is written to one.
This bit is set when byte transfer has completed.
• REP: Repeated Start Received
This bit is cleared when the corresponding bit in SCR is written to one.
This bit is set when a REPEATED START condition is received.
• STO: Stop Received
This bit is cleared when the corresponding bit in SCR is written to one.
This bit is set when the STOP condition is received.
• SMBDAM: SMBus Default Address Match
This bit is cleared when the corresponding bit in SCR is written to one.
This bit is set when the received address matched the SMBus Default Address.
• SMBHHM: SMBus Host Header Address Match
This bit is cleared when the corresponding bit in SCR is written to one.
This bit is set when the received address matched the SMBus Host Header Address.
• GCM: General Call Match
This bit is cleared when the corresponding bit in SCR is written to one.
This bit is set when the received address matched the General Call Address.
• SAM: Slave Address Match
This bit is cleared when the corresponding bit in SCR is written to one.
This bit is set when the received address matched the Slave Address.
• BUSERR: Bus Error
This bit is cleared when the corresponding bit in SCR is written to one.
This bit is set when a misplaced START or STOP condition has occurred.
• SMBPECERR: SMBus PEC Error
This bit is cleared when the corresponding bit in SCR is written to one.
This bit is set when a SMBus PEC error has occurred.
42023C–SAM–02/2013
ATSAM4L4/L2
25
-
17
GCM
9
-
1
TXRDY
24
-
16
SAM
8
NAK
0
RXRDY
760