C8051F970-A-GM Datasheet, PDF (152/454 Pages) Silicon Laboratories – Low Power Capacitive Sensing MCU with up to 32 kB of Flash

C8051F97x
Register 18.10. CS0MD2: Capacitive Sense 0 Mode 2
Bit
7
6
5
4
3
Name
CS0CR
CS0DT
Type
RW
RW
Reset
0
1
0
0
0
SFR Page = 0x0; SFR Address: 0xBE
2
1
0
CS0IA
RW
0
0
0
Bit
Name
Function
7:6
CS0CR CS0 Conversion Rate.
These bits control the conversion rate of the CS0 module.
00: Conversions last 12 internal CS0 clocks and are 12 bits in length.
01: Conversions last 13 internal CS0 clocks and are 13 bits in length.
10: Conversions last 14 internal CS0 clocks and are 14 bits in length.
11: Conversions last 16 internal CS0 clocks.and are 16 bits in length.
5:3
CS0DT CS0 Discharge Time.
These bits adjust the primary CS0 reset time. For most touch-sensitive switches, the
default (fastest) value is sufficient.
000: Discharge time is 0.75 us (recommended for most switches).
001: Discharge time is 1.0 us.
010: Discharge time is 1.2 us.
011: Discharge time is 1.5 us.
100: Discharge time is 2 us.
101: Discharge time is 3 us.
110: Discharge time is 6 us.
111: Discharge time is 12 us.
2:0
CS0IA CS0 Output Current Adjustment.
These bits adjust the output current used to charge up the capacitive sensor element.
For most touch-sensitive switches, the default (highest) current is sufficient.
000: Full current.
001: 1/8 current.
010: 1/4 current.
011: 3/8 current.
100: 1/2 current.
101: 5/8 current.
110: 3/4 current.
111: 7/8 current.
152
Rev 1.0