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STR720 Datasheet(PDF) 322 Page - STMicroelectronics

No. de pieza STR720
Descripción Electrónicos  ARM720T 16/32-BIT MCU WITH 16K RAM, USB, CAN, 3 TIMERS, ADC, 6 COMMUNICATIONS INTERFACES
PDF  401 Pages
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Fabricante Electrónico  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STR720 Datasheet(HTML) 322 Page - STMicroelectronics

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STR720 - EXTENDED FUNCTION TIMER (EFT)
322/401
– When OCBR = OCAR, a square waveform with 50% duty cycle will be generated as in
Figure 54.
– When OCBR and OCAR are loaded with FFFC (the counter reset value) then a square wave-
form will be generated & the counter will remain stuck at FFFC. The period will be calculated
using the following formula:
– When OCAR is loaded with FFFC (the counter reset value) then the waveform will be gen-
erated as in Figure 54.
– When FOLVA bit is set and PWM bit is set, then PWM mode is the active one. But if FOLVB
bit is set then the OLVLB bit will appear on OCMPB (when OCBE bit = 1).
– When a write is performed on CNTR register in PWM mode, then the Counter will be reset
and the pulse-width/period of the waveform generated may not be as desired.
Period
t
CPU
PRESC
1
+
() OCBR 1
+
()
⋅⋅
=
1



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