Rev. 1.40
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Rev. 1.40
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BS67F340/BS67F350/BS67F360/BS67F370
Enhanced Touch A/D Flash MCU with LCD Driver
BS67F340/BS67F350/BS67F360/BS67F370
Enhanced Touch A/D Flash MCU with LCD Driver
Bit 2~0
CTnRP2~CTnRP0
: CTMn CCRP 3-bit register, compared with the CTMn Counter
bit 9 ~ bit 7
000: 1024 CTMn clocks
001: 128 CTMn clocks
010: 256 CTMn clocks
011: 384 CTMn clocks
100: 512 CTMn clocks
101: 640 CTMn clocks
110: 768 CTMn clocks
111: 896 CTMn clocks
These three bits are used to setup the value on the internal CCRP 3-bit register, which
are then compared with the internal counter’s highest three bits. The result of this
comparison can be selected to clear the internal counter if the CTnCCLR bit is set to
zero. Setting the CTnCCLR bit to zero ensures that a compare match with the CCRP
values will reset the internal counter. As the CCRP bits are only compared with the
highest three counter bits, the compare values exist in 128 clock cycle multiples.
Clearing all three bits to zero is in effect allowing the counter to overflow at its
maximum value.
CTMnC1 Register
Bit
7
6
5
4
3
2
1
0
Name
CTnM1
CTnM0
CTnIO1
CTnIO0
CTnOC
CTnPOL
CTnDPX
CTnCCLR
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
CTnM1~CTnM0
: Select CTMn Operating Mode
00: Compare Match Output Mode
01: Undefined
10: PWM Mode
11: Timer/Counter Mode
These bits setup the required operating mode for the CTMn. To ensure reliable
operation the CTMn should be switched off before any changes are made to the
CTnM1 and CTnM0 bits. In the Timer/Counter Mode, the CTMn output pin control
will be disabled.
Bit 5~4
CTnIO1~CTnIO0
: Select CTMn external pin (CTPn) function
Compare Match Output Mode
00: No change
01: Output low
10: Output high
11: Toggle output
PWM Output Mode
00: PWM output inactive state
01: PWM output active state
10: PWM output
11: Undefined
Timer/Counter Mode
Unused
These two bits are used to determine how the CTMn output pin changes state when a
certain condition is reached. The function that these bits select depends upon in which
mode the CTMn is running.