Holtek BS86DH12C Manual page 117

BS86DH12C
High Voltage Touch A/D Flash MCU with HVIO
• TKMn16DH/TKMn16DL – Touch Key Module n 16-bit C/F Counter Register Pair
Register
Bit 7
Name D15 D14 D13 D12 D11 D10 D9
R/W R
POR 0
This register pair is used to store the touch key module n 16-bit C/F counter value. This 16-bit C/F
counter will be stopped and the counter content will be kept unchanged when the touch key time slot
counter overflows. This register pair will be cleared to zero when the TKST bit is set low.
• TKMnROH/TKMnROL – Touch Key Module n Reference Oscillator Capacitor Select
Register Pair
Register
Bit 7
Name —
R/W —
POR —
This register pair is used to store the touch key module n reference oscillator capacitor value.
The reference oscillator internal capacitor value=(TKMnRO[9:0]×50pF)/1024
• TKMnC0 Register
Bit 7
Name MnMXS1 MnMXS0 MnDFEN MnFILEN MnSOFC MnSOF2 MnSOF1 MnSOF0
R/W R/W
POR 0
Bit 7~6 MnMXS1~MnMXS0: Multiplexer Key Selection
MnMXS[1:0]
MnDFEN: Touch key module n multi-frequency control
Bit 5
0: Disable
1: Enable
This bit is used to control the touch key oscillator frequency doubling function. When
this bit is set to 1, the key oscillator frequency will be doubled.
Bit 4 MnFILEN: Touch key module n filter function control
0: Disable
1: Enable
MnSOFC: Touch key module n C/F oscillator frequency hopping function control
Bit 3
select
0: Controlled by the MnSOF2~MnSOF0
1: Controlled by hardware circuit
This bit is used to select the touch key oscillator frequency hopping function control
method. When this bit is set to 1, the key oscillator frequency hopping function is
controlled by the hardware circuit regardless of the MnSOF2~MnSOF0 bits value.
Rev. 1.00
TKMn16DH
6 5 4 3 2 1
R R R R R R
0 0 0 0 0 0
TKMnROH
6 5 4 3 2 1
— — — — — D9
— — — — — R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W
— — — — — 0
6 5
R/W R/W R/W
0 0
Bit Touch Key Module Number
M0
00 KEY1
01 KEY2
10 KEY3
11 KEY4
117
TKMn16DL
0 7 6 5 4 3
D8 D7 D6 D5 D4 D3
R R R R R R
0 0 0 0 0 0
TKMnROL
0 7 6 5 4 3
D8 D7 D6 D5 D4 D3
0 0 0 0 0 0
4 3 2
R/W R/W
0 0 0
M1 M2
KEY5 KEY9
KEY6 KEY10
KEY7 KEY11
KEY8 KEY12
2 1 0
D2 D1 D0
R R R
0 0 0
2 1 0
D2 D1 D0
0 0 0
1 0
R/W R/W
0 0
October 26, 2018