Instruction Manual
Preliminary W79E8213/W79E8213R Data Sheet 
Publication Release Date: July 11, 2008 
 - 33 -  Revision A2 
BIT NAME  FUNCTION 
7~0  PWM1.[7:0]  PWM 1 Low Bits Register. 
PWM CONTROL REGISTER 1 
Bit: 7 6 5 4 3 2 1 0 
 PWMRUN Load PWMF CLRPWM - - PWM1I PWM0I 
Mnemonic: PWMCON1  Address: DCh 
BIT NAME  FUNCTION 
7 PWMRUN 
0: The PWM is not running. 
1: The PWM counter is running. 
6 Load 
0: The registers value of PWMP and PWMn are never loaded to counter and 
Comparator registers. 
1: The PWMP and PWMn registers load value to counter and compare registers 
at the counter underflow. This bit is auto cleared by hardware at next clock 
cycle. 
5 PWMF 
PWM underflow flag: 
0: The 10-bit counter down count is not underflow. 
1: The 10-bit counter down count is underflow. (PWM interrupt is requested if 
PWM interrupt is enabled). 
This bit is Software clear. 
4  CLRPWM  1: Clear 10-bit PWM counter to 000H. This bit is auto cleared by hardware. 
3 PWM3I 
0: PWM3 out is non-inverted. 
1: PWM3 output is inverted. 
2 PWM2I 
0: PWM2 out is non-inverted. 
1: PWM2 output is inverted. 
1 PWM1I 
0: PWM1 out is non-inverted. 
1: PWM1 output is inverted. 
0 PWM0I 
0: PWM0 out is non-inverted. 
1: PWM0 output is inverted. 
PWM2 LOW BITS REGISTER 
Bit: 7 6 5 4 3 2 1 0 
  PWM2.7 PWM2.6 PWM2.5 PWM2.4 PWM2.3 PWM2.2 PWM2.1 PWM2.0 
Mnemonic: PWM2L  Address: DDh 
BIT NAME  FUNCTION 
7~0  PWM2.[7:0]  PWM 2 Low Bits Register. 










