SAM4L Datasheet, PDF (925/1185 Pages) ATMEL Corporation – ATSAM ARM-based Flash MCU

34.7.2 Counter Control Register
Name:
CNTCR
Access Type:
Read/Write
Offset:
0x04
Reset Value:
0x00000000
ATSAM4L4/L2
31
30
29
28
27
26
25
24
-
REPEAT
SPREAD
23
22
21
20
19
18
17
16
TOP[23:16]
15
14
13
12
11
10
9
8
TOP[15:8]
7
6
5
4
3
2
1
0
TOP[7:0]
Note: This register must not be written to during CATB operation (CR.RUN is one).
• REPEAT: Repeat Measurements
Measurements are repeated REPEAT+1 times in the acqusition block. The individual measurements are summed before being
sent to the filter.
• SPREAD: Spread Spectrum
0: Normal mode of operation. Spread spectrum mode of operation is not used.
1-15: Spread-spectrum mode of operation. The effective TOP value deviation ranges from TOP – (16 ⋅ 2^{SPREAD – 1}) to TOP.
• TOP: Counter Top Value
Determines sample rate.
42023C–SAM–02/2013
925