HD6417750RF240V Datasheet, PDF (290/606 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2600 Series

Section 11 Motor Management Timer (MMT)
11.4.1 Sample Setting Procedure
An example of the operating mode setting procedure is shown in figure 11.2.
Halt count operation
Clear the CST bit to 0 in the timer control register
(TCNR) to halt timer counter operation. Make the
operating mode setting while TCNT is halted.
Set TCNT
Set 2Td (Td: dead time) in TCNT.
Set dead time carrier period
Set TBR
Set PWM output level
Set dead time Td in the dead time data register
(TDDR), set 1/2 the carrier period in the timer period
buffer register (TPBR), and set {TPBR value + 2Td} in
the timer period data register (TPDR).
Set the output {PWM duty initial value − Td} in the free
operation addresses of the buffer registers (TBRU,
TBRV, TBRW).
Set the PWM output level with bits OLSN and OLSP in
the timer mode register (TMDR).
Set operating mode
Set external pin functions
Set the operating mode in the timer mode register
(TMDR). The PUOA, PUOB, PVOA, PVOB, PWOA,
and PWOB pins are output pins.
Set the external pin functions with the MMT pin control
register.
Start count operation
Set the CST bit to 1 in TCNR to start the count
operation.
<Operating mode>
Figure 11.2 Sample Operating Mode Setting Procedure
Rev. 7.00 Sep. 11, 2009 Page 254 of 566
REJ09B0211-0700