Samsung S5PC100 User Manual page 587

PULSE WIDTH MODULATION TIMER
3.7 OUTPUT LEVEL CONTROL
Inverter off
inverter on
The steps to maintain TOUT as high or low (Assume that inverter is off).
1. Turn off the auto-reload bit. Then, TOUTn goes to high level and the timer is stopped after TCNTn reaches to
0. This method is recommended.
2. Stop the timer by clearing the timer start/ stop bit to 0. If TCNTn <= TCMPn, the ouput level is high. If TCNTn
>TCMPn, the output level is low
3. TOUTn is inverted by the inverter on/ off bit in TCON. The inverter removes the additional circuit to adjust the
output level.
3.8 DEAD ZONE GENERATOR
The deadzone is for the PWM control of power devices. This feature is used to insert the time gap between a turn-
off of a switching device and a turn on of the other switching device. This time gap prohibits the two switching
device turning on simultaneously even for a very short time.
TOUT_0 is the PWM output. nTOUT_0 is the inversion of the TOUT_0. If the dead-zone is enabled, the output
wave-form of TOUT_0 and nTOUT_0 is TOUT_0_DZ and nTOUT_0_DZ. TOUT0_DZ and nTOUT_0_DZ cannot
be turned on simultaneously by the dead zone interval. For functional correctness, the deadzone length must be
set smaller than compare counter value.
7.1-10
Initial State Period 1
Figure 7.1-7 Inverter On/Off
S5PC100 USER'S MANUAL (REV1.0)
Period 2 Timer stop