37.7.13 CVD Scan Descriptor 0 Control 3

Name: CVDSD0C3
Offset: 0x108
Reset: 0x00000000
Property: -

Bit 3130292827262524 
 SD0EN[1:0]  SD0BUFSD0INTENSD0SELFSD0MUT 
Access R/W/HCR/W/HCR/WR/WR/WR/W 
Reset 000000 
Bit 2322212019181716 
     CVDENCVDCPL[2:0] 
Access R/WR/WR/WR/W 
Reset 0000 
Bit 15141312111098 
  SD0ACQTIME[6:0] 
Access R/WR/WR/WR/WR/WR/WR/W 
Reset 0000000 
Bit 76543210 
  SD0CHGTIME[6:0] 
Access R/WR/WR/WR/WR/WR/WR/W 
Reset 0000000 

Bits 31:30 – SD0EN[1:0] Scan Descriptor Enable Mode

ValueDescription
00 Disables the Scan Descriptor
01 Executes the Scan Descriptor one time only, then clears the enable
10 Executes the Scan Descriptor and keeps it enabled. Then, moves on to the next enabled descriptors.
11 Executes the Scan Descriptor in a loop until a threshold match is detected, then clears the enable mode and moves on to the next enabled descriptors.

Bit 27 – SD0BUF Scan Descriptor CVD Buffer Enable

ValueDescription
1 Uses CVD buffer output as shared ADC input
0 Does not use CVD buffer output as shared ADC input

Bit 26 – SD0INTEN Scan Descriptor Interrupt Enable

ValueDescription
1 Scan descriptor creates an interrupt if the accumulator threshold is met
0 Scan descriptor does not create an interrupt

Bit 25 – SD0SELF Scan Descriptor Self Measurement Mode

ValueDescription
1 Enables the Self Measurement mode; RX outputs are part of CVD measurement and are driven
0 Disables the Self Measurement mode; RX outputs are not part of CVD measurements

Bit 24 – SD0MUT Scan Descriptor Mutual Mode

ValueDescription
1 Enables the Mutual Measurement mode; TX outputs are part of CVD measurement and are driven
0 Disables the Mutual Measurement mode; TX outputs are not part of CVD measurements

Bit 19 – CVDEN Capacitive Voltage Division Enable bit

ValueDescription
1 CVD operation is enabled
0 CVD operation is disabled

Bits 18:16 – CVDCPL[2:0] Capacitor Voltage Divider (CVD) Setting bits

ValueDescription
111 7 * 2.5 pF = 17.5 pF
110 6 * 2.5 pF = 15 pF
101 5 * 2.5 pF = 12.5 pF
100 4 * 2.5 pF = 10 pF
011 3 * 2.5 pF = 7.5 pF
010 2 * 2.5 pF = 5 pF
001 1 * 2.5 pF = 2.5 pF
000 0 * 2.5 pF = 0 pF

Bits 14:8 – SD0ACQTIME[6:0] Scan Descriptor Acquire Time

Specifies the time that CVD waits for the ADC voltage to settle.

Bits 6:0 – SD0CHGTIME[6:0] Scan Descriptor Charge Time

Specifies the time that CVD remains in the charging state for internal or external capacitors and for TX outputs