TMS320F28065: min and max internal pull up register value

Hisao Uchikoshi

Part Number: TMS320F28065

Hi Experts,

We are using ePWM4A at 58pin. This pin is multiplexed with GPIO so the internal pull up register is enabled at reset. Since ePWM4A should be driven to low at power on, I'd like to know the min and max internal value for pull up register to keep this pin to low with external pull down register.

Do you have any data for internal pull up register?

Regards,

Uchikoshi

over 7 years ago

0 Brett Larimore over 7 years ago

TI__Guru 57255 points

Hi Uchikoshi-san,

According to this device TRM, GPIO6 has its internal pull-up disabled at reset. Please see the register description for GPIO A Pullup Disable Register (GPAPUD) in the TRM.

Also see the following article from the C2000 GPIO wiki can also be helpful:

http://processors.wiki.ti.com/index.php/General_Purpose_IO_(GPIO)_FAQ_for_C2000#Q:_Are_the_pull-ups_on_pins_that_can_be_used_as_ePWM_outputs_enabled_or_disabled_on_reset.3F
http://processors.wiki.ti.com/index.php/General_Purpose_IO_(GPIO)_FAQ_for_C2000#Q:_What_is_the_value_of_the_pull-up_and_pull-down_resistors.3F

Thank you,
Brett

C2000™︎ microcontrollers

C2000 microcontrollers forum

TMS320F28065: min and max internal pull up register value