SH7108 Datasheet, PDF (412/560 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer

Section 13 Motor Management Timer (MMT)
TPDR
TCNT
2Td
H'0000
PCIO pin
(toggle output)
Figure 13.7 Example of Toggle Output Waveform Synchronized with PWM Cycle
(13) Settings for A/D Conversion Start Requests
Requests to start A/D conversion can be set up to be issued when TCNT matches TPDR or 2Td.
When the start requests are set up for issue when TCNT matches TPDR, A/D conversion will start
at the center of the PWM pulse (the peak value of the TCNT counter). When the start requests are
set up for issue when TCNT matches 2Td, A/D conversion will start on the edge of the PWM
pulse (the minimum value of the TCNT counter).
Requests to start A/D conversion is enabled by setting the TTGE bit in the timer control register
(TCNR) to 1.
Table 13.3 shows the relationship between A/D conversion start timing and operating mode.
Table 13.3 Relationship between A/D Conversion Start Timing and Operating Mode
Operating Mode
A/D Conversion Start Timing
Operating mode 1 (transfer at peak)
A/D conversion start at trough
Operating mode 2 (transfer at trough)
A/D conversion start at peak
Operating mode 3 (transfer at peak and trough) A/D conversion start at peak and trough
13.4.2 Output Protection Functions
Operating mode output has the following protection functions:
• Halting MMT output by external signal
The six-phase PWM output pins can be placed in the high-impedance state automatically by
inputting a specified external signal. There are three external signal input pins. For details, see
section 13.8, Port Output Enable (POE).
Rev.1.00 Sep. 18, 2008 Page 378 of 522
REJ09B0069-0100