h8s-2628 Renesas Electronics Corporation., h8s-2628 Datasheet - Page 252

• Manufacturer Part Number: h8s-2628
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
• Manufacturer: Renesas Electronics Corporation.

Section 10 16-Bit Timer Pulse Unit (TPU)
Example of Synchronous Operation: Figure 10.11 shows an example of synchronous operation.
In this example, synchronous operation and PWM mode 1 have been designated for channels 0 to
2, TGRB_0 compare match has been set as the channel 0 counter clearing source, and
synchronous clearing has been set for the channel 1 and 2 counter clearing sources.
Three-phase PWM waveforms are output from pins TIOCA0, TIOCA1, and TIOCA2. At this
time, synchronous presetting, and synchronous clearing by TGRB_0 compare match, are
performed for channel 0 to 2 TCNT counters, and the data set in TGRB_0 is used as the PWM
cycle.
For details of PWM modes, see section 10.4.5, PWM Modes.
10.4.3
Buffer operation, provided for channels 0 and 3, enables TGRC and TGRD to be used as buffer
registers.
Buffer operation differs depending on whether TGR has been designated as an input capture
register or as a compare match register.
Table 10.28 shows the register combinations used in buffer operation.
Rev. 3.00 Oct 04, 2005 page 212 of 598
REJ09B0155-0300
TGRB_0
TGRB_1
TGRA_0
TGRB_2
TGRA_1
TGRA_2
H'0000
TIOCA_0
TIOCA_1
TIOCA_2
Buffer Operation
TCNT0 to TCNT2 values
Figure 10.11 Example of Synchronous Operation
Synchronous clearing by TGRB_0 compare match
Time