Datasheet

930
42023E–SAM–07/2013
ATSAM4L8/L4/L2
34.7.2 Counter Control Register
Name:
CNTCR
Access Type: Read/Write
Offset: 0x04
Reset Value: 0x00000000
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
to TOP.
• TOP: Counter Top Value
Determines sample rate.
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]
76543210
TOP[7:0]
TOP 16 2
SPREAD 1–
⋅()–