Holtek BS86DH12C Manual page 118

MnSOF2~MnSOF0: Touch key module n Reference and Key oscillators hopping
Bit 2~0
frequency selection (MnSOFC=0)
000: 1.020MHz
001: 1.040MHz
010: 1.059MHz
011: 1.074MHz
100: 1.085MHz
101: 1.099MHz
110: 1.111MHz
111: 1.125MHz
These bits are used to select the touch key oscillator frequency for the hopping
function. Note that these bits are only available when the MnSOFC bit is cleared to 0.
The frequency mentioned here will be changed when the external or internal capacitor
has different values. If the touch key operates at 1MHz frequency, users can adjust the
frequency in scale when any other frequency is selected.
• TKMnC1 Register
Bit 7
Name MnTSS
R/W R/W
POR 0
MnTSS: Touch key module n time slot counter clock source selection
Bit 7
0: Touch key module n reference oscillator
1: f
Bit 6 Unimplemented, read as "0"
MnROEN: Touch key module n Reference oscillator enable control
Bit 5
0: Disable
1: Enable
MnKOEN: Touch key module n Key oscillator enable control
Bit 4
0: Disable
1: Enable
MnK4EN: Touch key module n Key 4 enable control
Bit 3
Bit 2 MnK3EN: Touch key module n Key 3 enable control
MnK2EN: Touch key module n Key 2 enable control
Bit 1
Rev. 1.00
High Voltage Touch A/D Flash MCU with HVIO
6 5
— MnROEN MnKOEN MnK4EN MnK3EN MnK2EN MnK1EN
— R/W
— 0
/4
SYS
Touch Key Module n – Mn
MnK4EN
M0
0: Disable I/O or other functions
1: Enable KEY4
Touch Key Module n – Mn
MnK3EN
M0
0: Disable I/O or other functions
1: Enable KEY3
Touch Key Module n – Mn
MnK2EN
M0
0: Disable I/O or other functions
1: Enable KEY2
118
4 3 2
R/W R/W R/W
0 0 0
M1 M2
KEY8 KEY12
M1 M2
KEY7 KEY11
M1 M2
KEY6 KEY10
BS86DH12C
1 0
R/W R/W
0 0
October 26, 2018