R5S72011 RENESAS [Renesas Technology Corp], R5S72011 Datasheet - Page 544
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R5S72011
Manufacturer Part Number
R5S72011
Description
32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7200 Series
Manufacturer
RENESAS [Renesas Technology Corp]
Datasheet
1.R5S72011.pdf
(1196 pages)
- Current page: 544 of 1196
- Download datasheet (8Mb)
Section 12 Multi-Function Timer Pulse Unit 2 (MTU2)
(p) Example of AC Synchronous Motor (Brushless DC Motor) Drive Waveform Output
In complementary PWM mode, a brushless DC motor can easily be controlled using the timer gate
control register (TGCR). Figures 12.63 to 12.66 show examples of brushless DC motor drive
waveforms created using TGCR.
When output phase switching for a 3-phase brushless DC motor is performed by means of external
signals detected with a Hall element, etc., clear the FB bit in TGCR to 0. In this case, the external
signals indicating the polarity position are input to channel 0 timer input pins TIOC0A, TIOC0B,
and TIOC0C (set with PFC). When an edge is detected at pin TIOC0A, TIOC0B, or TIOC0C, the
output on/off state is switched automatically.
When the FB bit is 1, the output on/off state is switched when the UF, VF, or WF bit in TGCR is
cleared to 0 or set to 1.
The drive waveforms are output from the complementary PWM mode 6-phase output pins. With
this 6-phase output, in the case of on output, it is possible to use complementary PWM mode
output and perform chopping output by setting the N bit or P bit to 1. When the N bit or P bit is 0,
level output is selected.
The 6-phase output active level (on output level) can be set with the OLSN and OLSP bits in the
timer output control register (TOCR) regardless of the setting of the N and P bits.
Rev. 2.00 Sep. 07, 2007 Page 516 of 1164
REJ09B0321-0200
Figure 12.63 Example of Output Phase Switching by External Input (1)
External input
6-phase output
When BDC = 1, N = 0, P = 0, FB = 0, output active level = high
TIOC0A pin
TIOC0B pin
TIOC0C pin
TIOC3B pin
TIOC3D pin
TIOC4A pin
TIOC4C pin
TIOC4B pin
TIOC4D pin
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