BS85B12-3 HOLTEK [Holtek Semiconductor Inc], BS85B12-3 Datasheet - Page 106

• Manufacturer Part Number: BS85B12-3
• Description: Touch Key Flash Type 8-Bit MCU with LCD/LED Driver
• Manufacturer: HOLTEK [Holtek Semiconductor Inc]

Note:
Rev. 1.00
Flag TnAF
Flag TnBF
Flag TnPF
CCRA Int.
CCRB Int.
CCRP Int.
(TnAOC=1)
(TnBOC=1)
(TnBOC=0)
TPnA Pin
TPnB Pin
TPnB Pin
TnAPOL
TnPAU
Counter Value
CCRP
CCRA
CCRB
TnON
1. Here TnCCLR=1 therefore CCRA clears the counter and determines the PWM period
2. TnPWM [1:0] =11 therefore the PWM is centre aligned
3. The internal PWM function continues running even when TnBIO [1:0] = 00 or 01
4. CCRA controls the TPnB PWM period and CCRB controls the TPnB PWM duty
5. CCRP will generate an interrupt request when the counter decrements to its zero value
Touch Key Flash MCU with LCD/LED Driver
Duty Cycle set by CCRA
Duty Cycle set by CCRB
PWM Period set by CCRP
ETM PWM Mode -- Centre Aligned
100
TnCCLR = 0;
TnAM [1:0] = 10, TnBM [1:0] = 10;
TnPWM [1:0] = 11
Pause
BS85B12-3/BS85C20-3
Resume
Output controlled by
Other pin-shared function
Stop
Counter
Restart
February 1, 2011
Output Pin
Reset to Initial value
Output Inverts
when TnAPOL
is high
Time