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NUC130-YB2N Fiches technique(PDF) 42 Page - Nuvoton Technology Corporation |
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NUC130-YB2N Fiches technique(HTML) 42 Page - Nuvoton Technology Corporation |
42 / 89 page NuMicro ™ NUC120 Data Sheet Publication Release Date: Jan. 2, 2012 - 42 - Revision V2.03 ator and Capture Timer (PWM) 5.7. m Density has 2 sets of PWM group supports total 4 sets of independent PWM outputs, PWM0~PWM7, or as 4, PWM5) and (PWM6, tors. NuMicro ™ NUC100/NUC120 Low Density only sup (PWM , PWM3) with 2 programmable dead-zone generators. 1/2, 1/4, 1/8, 1/16), two PWM Timers including two clock selectors, two 16-bit PWM down- zon whi correspondin PWM period down cou t aches zero. int gured as one-shot mode to produce only one PWM rm continuously. lementary PWM paired function; the PWM0 timer and Dead-zone WM pairs of (PWM2, PWM3), (PWM4, PWM5) and To prevent PWM driving output pin with unsteady waveform, the 16-bit period down counter and 16-bit comparator are implemented with double buffer. When user writes data to counter/comparator buffer registers the updated value will be load into the 16-bit down counter/ comparator at the time down counter reaching zero. The double buffering feature avoids glitch at PWM outputs. When the 16-bit period down counter reaches zero, the interrupt request is generated. If PWM- timer is set as auto-reload mode, when the down counter reaches zero, it is reloaded with PWM Counter Register (CNRx) automatically then start decreasing, repeatedly. If the PWM-timer is set as one-shot mode, the down counter will stop and generate one interrupt request when it reaches zero. The value of PWM counter comparator is used for pulse high width modulation. The counter control logic changes the output to high level when down-counter value matches the value of compare register. The alternate feature of the PWM-timer is digital input Capture function. If Capture function is enabled the PWM output pin is switched as capture input mode. The Capture0 and PWM0 share one timer which is included in PWM0 and the Capture1 and PWM1 share PWM1 timer, and etc. Therefore user must setup the PWM-timer before enable Capture feature. After capture feature is enabled, the capture always latched PWM-counter to Capture Rising Latch Register (CRLR) when input channel has a rising transition and latched PWM-counter to Capture Falling Latch Register (CFLR) when input channel has a falling transition. Capture channel 0 interrupt is programmable by setting CCR0.CRL_IE0[1] (Rising latch Interrupt enable) and CCR0.CFL_IE0[2]] (Falling latch Interrupt enable) to decide the condition of interrupt occur. Capture channel 1 has the same feature by setting CCR0.CRL_IE1[17] and CCR0.CFL_IE1[18]. And capture channel 2 to channel 3 on each group have the same feature by setting the corresponding control bits in CCR2. For each group, whenever Capture issues Interrupt 0/1/2/3, 5.7 PWM Gener 1 Overview NuMicro ™ NUC100/NUC120 Mediu PWM Generators which can be configured as 8 4 complementary PWM pairs, (PWM0, PWM1), (PWM2, PWM3), (PWM PWM7) with 4 programmable dead-zone genera port 1 set of PWM group supports total 2 sets of PWM Generators which can be configured as 4 independent PWM outputs, PWM0~PWM3, or as 2 complementary PWM pairs, 0, PWM1) and (PWM2 Each PWM Generator has one 8-bit prescaler, one clock divider with 5 divided frequencies (1, counters for PWM period control, two 16-bit comparators for PWM duty control and one dead- e generator. The 4 sets of PWM Generators provide eight independent PWM interrupt flags ch are set by hardware when the g n er re Each PWM interrupt source with its corresponding enable bit can cause CPU to request PWM errupt. The PWM generators can be confi cycle signal or auto-reload mode to output PWM wavefo When PCR.DZEN01 is set, PWM0 and PWM1 perform comp paired PWM period, duty and dead-time are determined by generator 0. Similarly, the complementary P (PWM6, PWM7) are controlled by PWM2, PWM4 and PWM6 timers and Dead-zone generator 2, 4 and 6, respectively. |
Numéro de pièce similaire - NUC130-YB2N |
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Description similaire - NUC130-YB2N |
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