SAM3S8 RTT

Real-time Timer (RTT) User Interface

Registers

Register Mapping
Address Register Name Access Reset
0x400E1430 Mode Register RTT_MR read-write 0x00008000
0x400E1434 Alarm Register RTT_AR read-write 0xFFFFFFFF
0x400E1438 Value Register RTT_VR read-only 0x00000000
0x400E143C Status Register RTT_SR read-only 0x00000000

Register Fields

RTT Mode Register

Name: RTT_MR

Access: read-write

Address: 0x400E1430

31 30 29 28 27 26 25 24
- - - - - - - RTC1HZ
23 22 21 20 19 18 17 16
- - - RTTDIS - RTTRST RTTINCIEN ALMIEN
15 14 13 12 11 10 9 8
RTPRES
7 6 5 4 3 2 1 0
RTPRES

RTT Alarm Register

Name: RTT_AR

Access: read-write

Address: 0x400E1434

31 30 29 28 27 26 25 24
ALMV
23 22 21 20 19 18 17 16
ALMV
15 14 13 12 11 10 9 8
ALMV
7 6 5 4 3 2 1 0
ALMV

RTT Value Register

Name: RTT_VR

Access: read-only

Address: 0x400E1438

31 30 29 28 27 26 25 24
CRTV
23 22 21 20 19 18 17 16
CRTV
15 14 13 12 11 10 9 8
CRTV
7 6 5 4 3 2 1 0
CRTV

RTT Status Register

Name: RTT_SR

Access: read-only

Address: 0x400E143C

31 30 29 28 27 26 25 24
- - - - - - - -
23 22 21 20 19 18 17 16
- - - - - - - -
15 14 13 12 11 10 9 8
- - - - - - - -
7 6 5 4 3 2 1 0
- - - - - - RTTINC ALMS