r5f71374an80fpv Renesas Electronics Corporation., r5f71374an80fpv Datasheet - Page 473

• Manufacturer Part Number: r5f71374an80fpv
• Description: 32-bit Risc Microcomputer Superh?? Risc Engine Family
• Manufacturer: Renesas Electronics Corporation.

10.7.15 Reset Sync PWM Mode Buffer Operation and Compare Match Flag
When setting buffer operation for reset sync PWM mode, set the BFA and BFB bits in TMDR_4
to 0. The TIOC4C pin will be unable to produce its waveform output if the BFA bit in TMDR_4 is
set to 1.
In reset sync PWM mode, the channel 3 and channel 4 buffers operate in accordance with the BFA
and BFB bit settings of TMDR_3. For example, if the BFA bit in TMDR_3 is set to 1, TGRC_3
functions as the buffer register for TGRA_3. At the same time, TGRC_4 functions as the buffer
register for TGRA_4.
The TGFC bit and TGFD bit in TSR_3 and TSR_4 are not set when TGRC_3 and TGRD_3 are
operating as buffer registers.
Figure 10.132 shows an example of operations for TGR_3, TGR_4, TIOC3, and TIOC4, with
TMDR_3's BFA and BFB bits set to 1, and TMDR_4's BFA and BFB bits set to 0.
TGRB_3, TGRA_4,
TGRB_4
TGRD_3, TGRC_4,
TGRD_4
TIOC3A
TIOC3B
TIOC3D
TIOC4A
TIOC4C
TIOC4B
TIOC4D
TGFC
TGFD
TGRC_3
H'0000
TGRA_3
Figure 10.132 Buffer Operation and Compare-Match Flags
Point b
in Reset Synchronous PWM Mode
Point a
Not set
TCNT3
Not set
Buffer transfer with
compare match A3
Section 10 Multi-Function Timer Pulse Unit 2 (MTU2)
Rev. 1.00 Sep. 21, 2007 Page 447 of 1124
TGRA_3,
TGRC_3
TGRB_3, TGRD_3,
TGRA_4, TGRC_4,
TGRB_4, TGRD_4
REJ09B0402-0100