XIO2001: M66EN pins, External Pulldown

takanobu fukuoka

Prodigy 70 points

Part Number: XIO2001

Hello,

I want to know the recommended external pulldown value for M66EN.

Because, I operate the IC with a PCI clock of 33MHz (PCLK66_SEL=1、M66EN=0).

What is the recommended external pulldown value for M66EN?

Best Regards,

T. Fukuoka

over 3 years ago

0 Clemens Ladisch over 3 years ago

Guru 316150 points

See figure 9-2. This signals needs a pull-up resistor so that it is high by default; it is pulled low (without any resistor) by devices that run only at 33 MHz.

If you have a fixed system that always runs at 33 MHz, you can connect it directly to GND.

0 JMMN over 3 years ago in reply to Clemens Ladisch

TI__Guru 60870 points

Hello Fukuoka-san,

Any additional questions here?

Regards,

JMMN

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XIO2001: M66EN pins, External Pulldown