s3c2410a Samsung Semiconductor, Inc., s3c2410a Datasheet - Page 289

• Manufacturer Part Number: s3c2410a
• Description: 16/32-bit Risc Arm Microprocessor
• Manufacturer: Samsung Semiconductor, Inc.

S3C2410A
PWM TIMER
PULSE WIDTH MODULATION (PWM)
60
50
40
30
30
Write
Write
Write
TCMPBn = 60
TCMPBn = 40
TCMPBn = 30
Write
Write
Write
TCMPBn = 50
TCMPBn = 30
TCMPBn = Next PWM Value
Figure 10-5. Example of PWM
PWM function can be implemented by using the TCMPBn. PWM frequency is determined by TCNTBn. Figure 10-5
shows a PWM value determined by TCMPBn.
For a higher PWM value, decrease the TCMPBn value. For a lower PWM value, increase the TCMPBn value. If an
output inverter is enabled, the increment/decrement may be reversed.
The double buffering function allows the TCMPBn, for the next PWM cycle, written at any point in the current PWM
cycle by ISR or other routine.
10-7