HD6437101 RENESAS [Renesas Technology Corp], HD6437101 Datasheet - Page 204

• Manufacturer Part Number: HD6437101
• Description: 32-Bit RISC Microcomputer
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 8 Multifunction Timer Pulse Unit (MTU)
There are two PWM modes, as described below.
• PWM mode 1
• PWM mode 2
The correspondence between PWM output pins and registers is shown in table 8.31.
Rev.1.00 Sep. 18, 2008 Page 170 of 522
REJ09B0069-0100
PWM output is generated from the TIOCA and TIOCC pins by pairing TGRA with TGRB and
TGRC with TGRD. The output specified by bits IOA0 to IOA3 and IOC0 to IOC3 in TIOR is
output from the TIOCA and TIOCC pins at compare matches A and C, and the output
specified by bits IOB0 to IOB3 and IOD0 to IOD3 in TIOR is output at compare matches B
and D. The initial output value is the value set in TGRA or TGRC. If the set values of paired
TGRs are identical, the output value does not change when a compare match occurs.
In PWM mode 1, a maximum 8-phase PWM output is possible.
PWM output is generated using one TGR as the cycle register and the others as duty cycle
registers. The output specified in TIOR is performed by means of compare matches. Upon
counter clearing by a synchronization register compare match, the output value of each pin is
the initial value set in TIOR. If the set values of the cycle and duty cycle registers are identical,
the output value does not change when a compare match occurs.
In PWM mode 2, a maximum 8-phase PWM output is possible in combination use with
synchronous operation.