Datasheet

Table Of Contents
Section 10 16-Bit Timer Pulse Unit (TPU)
Page 322 of 846 REJ09B0140-0900 Rev. 9.00
Sep 16, 2010
H8S/2215 Group
Examples of Buffer Operation
1. When TGR is an output compare register
Figure 10.19 shows an operation example in which PWM mode 1 has been designated for
channel 0, and buffer operation has been designated for TGRA and TGRC. The settings used
in this example are TCNT clearing by compare match B, 1 output at compare match A, and 0
output at compare match B. As buffer operation has been set, when compare match A occurs
the output changes and the value in buffer register TGRC is simultaneously transferred to
timer general register TGRA. This operation is repeated each time compare match A occurs.
For details of PWM modes, see section 10.5.4, PWM Modes.
TCNT value
TGRB_0
H'0000
TGRC_0
TGRA_0
H'0200 H'0520
TIOCA
H'0200
H'0450
H'0520
H'0450
TGRA_0
H'0450H'0200
Transfer
Time
Figure 10.19 Example of Buffer Operation (1)