32186 datasheet(491/1032 Pages) RENESAS

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10.8 TOU (Output-Related 24-Bit Timer)

MULTIJUNCTION TIMERS

10-195

32185/32186 Group Hardware Manual

Rev.1.10 REJ09B0235-0110 May 15, 07

There are following three methods to disable PWM outputs.

(1) Using the signal entered from an external pin (TIN16/PWMOFF0 or TIN17/PWMOFF1) to disable PWM

outputs

The input signal on the external pin (TIN16/PWMOFF0) may be used to disable outputs from the ports

P87(P00)/TO21–P82(P05)/TO26 that are provided for the PWM outputs of the timer TOU0_0–TOU0_5 . Simi-

larly, the input signal on the external pin (TIN17/PWMOFF1) may be used to disable outputs from the ports

P110(P10)/TO29–P115(P15)/TO34 that are provided for the PWM outputs of the timer TOU1_0–TOU1_5.

When selecting rising or falling or both edges at PWMOFFnS bit of PWMOFFn input procedure con-

trol register ( PWMOFFnCR )

When edge detecting in extarnal terminal (TIN16/PWMOFF0, TIN17/PWMOFF1, TIN33/PWMOFF2),

PWM output is disabed. At that time POnDISGmbit of PWM output n disable control register is set as

"1."

Restoring output enable status is done by '0' clearing POnDISGmbit of PWM output n disable Gm

When selecting 'L' level or 'H' level at PWMOFFnS bit of PWMOFFn input procedure control register

( PWMOFFnCR )

During inputting PWM output disable level to extarrnal terminal (TIN16/PWMOFF0, TIN17/PWMOFF1,

TIN33/PWMOFF2), PWM output is disabled.At that time POnDISGmbit of PWM output n disable control

Gm register is set as "1."

Restoring output enable status is done by exiting inputting PWM output disable level. At that time setting

value written in last time is read out from POnDISGmbit of PWM output n disable control register.

Note: • When write to POnDISGmbit of PWM output n disable control Gm register druing inputting

PWM output disable level to extarrnal terminal (TIN16/PWMOFF0, TIN17/PWMOFF1,

TIN33/PWMOFF2), the value written is stored in the register. However if read out, "1" is

read out. Then upon exiting PWM output disable level, it is possible to read out the con-

tents of setting POnDISGm, PWM output is controled by following the setting value.

To disable PWM outputs using the input signal on the external pin (TIN16/PWMOFF0 or TIN17/

PWMOFF1), set up the PWMOFFn Input Processing Control Register (PWMOFFnCR) and the PWMOFFn

Function Enable Register (PWMOFFnEN) as described below.

When using the signal inputted from TIN16/PWMOFF0 to disable PWM outputs

1. Write data "1" to the PWMOFF0CR register PWMOFF0SP bit.

2. After 1 above, write data ‘0’ to the PWMOFF0SP bit and then write setting value ("000," "001," "010,"

"011," "10X" or "11X") to the PWMOFF0S bit in succession.

3. Enable the PWMOFF0 function by writing "1" to either or both of the PWMOFF0GAEN bits and

PWMOFF0GBEN bits of the PWMOFF0EN register.

Note: • If theare are CPU, DMA, SDI, Writing cycle from NBD to any other area between 1 and 2, the

continuous setting ( A pair of two consecutive is 1 set for writing operation) is disabled and the

writing value is not reflected. Therefore, disable interrupts and DMA transfers before setting.

However the writing cycle from RTD and DRI are not effected.

When using TIN17/PWMOFF1 to disable PWM outputs

1. Write data "1" to the PWMOFF1CR register PWMOFF1SP bit.

2. After 1 above, write data ‘0’ to the PWMOFF1SP bit and then write setting value ("000," "001," "010,"

"011," "10X" or "11X") to the PWMOFF1S bit in succession.

3. Enable the PWMOFF1 function by writing "1" to either or both of the PWMOFF1GAEN and

PWMOFF1GBEN bits of the PWMOFF1EN register.

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