Datasheet

709
AT32UC3A
33.7.2 Mode Register
Name:
MR
Access Type: Read/Write
Offset: 0x04
Reset Value: 0x00000000
• SHTIM: Sample & Hold Time
Sample & Hold Time = (SHTIM+1) / ADCClock
• STARTUP: Start Up Time
Startup Time = (STARTUP+1) * 8 / ADCClock
• PRESCAL: Prescaler Rate Selection
ADCClock = CLK_ADC / ( (PRESCAL+1) * 2 )
• SLEEP: Sleep Mode
• LOWRES: Resolution
• TRGSEL: Trigger Selection
31 30 29 28 27 26 25 24
– – – – SHTIM
23 22 21 20 19 18 17 16
– – – STARTUP
15 14 13 12 11 10 9 8
– –
PRESCAL
7 6 5 4 3 2 1 0
– – SLEEP LOWRES TRGSEL TRGEN
SLEEP Selected Mode
0 Normal Mode
1 Sleep Mode
LOWRES Selected Resolution
0 10-bit resolution
1 8-bit resolution
TRGSEL Selected TRGSEL
0 0 0 Internal Trigger 0, depending of chip integration
0 0 1 Internal Trigger 1, depending of chip integration
0 1 0 Internal Trigger 2, depending of chip integration
0 1 1 Internal Trigger 3, depending of chip integration
1 0 0 Internal Trigger 4, depending of chip integration
32058K
AVR32-01/12