SH7101 datasheet(204/560 Pages) RENESAS

204 / 560 page

Section 8 Multifunction Timer Pulse Unit (MTU)

Rev.1.00 Sep. 18, 2008 Page 170 of 522

REJ09B0069-0100

There are two PWM modes, as described below.

• PWM mode 1

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 mode 2

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.

The correspondence between PWM output pins and registers is shown in table 8.31.

SH7101 Datasheet(PDF) 204 Page - Renesas Technology Corp