Features and Overview

• 8- and 16-bit general purpose pulse width modulator (PWM) with 8-bit dead band generator, two or three PSoC blocks, respectively
• Phase1 and Phase2 under-lapped outputs track the frequency of the generated PWM signal
• Programmable duty cycle
• Programmable dead time
• Dead Band Kill input drives Phase1 and Phase2 outputs low
• Counter clocking up to 48 MHz
• Interrupt option triggered on rising edge of the PWM generated signal or counter terminal count

The 8- and 16-bit PWMDB User Modules are pulse width modulators combined with an 8-bit dead band generator. The pulse width modulator provides a programmable period and pulse width input signal to the dead band generator. The dead band generator outputs two under-lapped signals, with programmable dead time at the same frequency as the input signal. When asserted, the Dead Band Kill input will drive the Phase1 and Phase2 output signals low. The clock and enable signals can be selected from several sources. The Phase1 and Phase2 output signals can be routed to the external pin ports or to the global output buses for internal use by other user modules. An interrupt can be programmed to effectively trigger on both edges of the pulse width modulator output.