31.5.2 Control B

Name: CTRLB
Offset: 0x01
Reset: 0x00
Property: -

Bit 76543210 
    PRESC[4:0] 
Access R/WR/WR/WR/WR/W 
Reset 00000 

Bits 4:0 – PRESC[4:0] Prescaler

This bit field controls the division factor from the peripheral clock (CLK_PER) to the ADC clock (CLK_ADC).

The generated frequency is fCLK_PER / (PRESC+2)

ValueNameDescription
0x0 DIV2 CLK_PER divided by 2
0x1 DIV3 CLK_PER divided by 3
0x2 DIV4 CLK_PER divided by 4
0x3 DIV5 CLK_PER divided by 5
0x4 DIV6 CLK_PER divided by 6
0x5 DIV7 CLK_PER divided by 7
0x6 DIV8 CLK_PER divided by 8
0x7 DIV9 CLK_PER divided by 9
0x8 DIV10 CLK_PER divided by 10
0x9 DIV11 CLK_PER divided by 11
0xA DIV12 CLK_PER divided by 12
0xB DIV13 CLK_PER divided by 13
0xC DIV14 CLK_PER divided by 14
0xD DIV15 CLK_PER divided by 15
0xE DIV16 CLK_PER divided by 16
0xF DIV17 CLK_PER divided by 17
0x10 DIV18 CLK_PER divided by 18
0x11 DIV19 CLK_PER divided by 19
0x12 DIV20 CLK_PER divided by 20
0x13 DIV21 CLK_PER divided by 21
0x14 DIV22 CLK_PER divided by 22
0x15 DIV23 CLK_PER divided by 23
0x16 DIV24 CLK_PER divided by 24
0x17 DIV25 CLK_PER divided by 25
0x18 DIV26 CLK_PER divided by 26
0x19 DIV27 CLK_PER divided by 27
0x1A DIV28 CLK_PER divided by 28
0x1B DIV29 CLK_PER divided by 29
0x1C DIV30 CLK_PER divided by 30
0x1D DIV31 CLK_PER divided by 31
0x1E DIV32 CLK_PER divided by 32
0x1F - RESERVED