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Rev. 1.00
92
October 26, 2018
Rev. 1.00
93
October 26, 2018
BS86DH12C
High Voltage Touch A/D Flash MCU with HVIO
BS86DH12C
High Voltage Touch A/D Flash MCU with HVIO
• PTMC1 Register
Bit
7
6
5
4
3
2
1
0
Name
PTM1
PTM0
PTIO1
PTIO0
PTOC
PTPOL PTCAPTS PTCCLR
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
POR
0
0
0
0
0
0
0
0
Bit 7~6
PTM1~PTM0
: Select PTM Operating Mode
00: Compare Match Output Mode
01: Capture Input Mode
10: PWM Output Mode or Single Pulse Output Mode
11: Timer/Counter Mode
These bits set the required operating mode for the PTM. To ensure reliable operation
the PTM should be switched off before any changes are made to the PTM1 and PTM0
bits. In the Timer/Counter Mode, the PTM output pin state is undefined.
Bit 5~4
PTIO1~PTIO0
: PTM external pin PTP, PTPI or PTCK function selection
Compare Match Output Mode
00: No change
01: Output low
10: Output high
11: Toggle output
PWM Output Mode/Single Pulse Output Mode
00: PWM output inactive state
01: PWM output active state
10: PWM output
11: Single Pulse Output
Capture Input Mode
00: Input capture at rising edge of PTPI or PTCK
01: Input capture at falling edge of PTPI or PTCK
10: Input capture at rising/falling edge of PTPI or PTCK
11: Input capture disabled
Timer/Counter Mode
Unused
These two bits are used to determine how the PTM external pin changes state when a
certain condition is reached. The function that these bits select depends upon in which
mode the PTM is running.
In the Compare Match Output Mode, the PTIO1 and PTIO0 bits determine how the
PTM output pin changes state when a compare match occurs from the Comparator A.
The PTM output pin can be set to switch high, switch low or to toggle its present state
when a compare match occurs from the Comparator A. When the bits are both zero,
then no change will take place on the output. The initial value of the PTM output pin
should be set using the PTOC bit in the PTMC1 register. Note that the output level
requested by the PTIO1 and PTIO0 bits must be different from the initial value setup
using the PTOC bit otherwise no change will occur on the PTM output pin when a
compare match occurs. After the PTM output pin changes state, it can be reset to its
initial level by changing the level of the PTON bit from low to high.
In the PWM Output Mode, the PTIO1 and PTIO0 bits determine how the TM output
pin changes state when a certain compare match condition occurs. The PTM output
function is modified by changing these two bits. It is necessary to only change the
values of the PTIO1 and PTIO0 bits only after the PTM has been switched off.
Unpredictable PWM outputs will occur if the PTIO1 and PTIO0 bits are changed
when the PTM is running.