8-bit MicrocontrollersのトピックRe: MC9S08DZ60 MSCAN

MC9S08DZ60 MSCAN

jesortsan — Wed, 28 Mar 2007 22:47:30 GMT

Hello,

I don't know the typical values for the following parameters in the MC9S08DZ60 MSCAN module:

* tTx: propagation delay of the transmitter part of the physical interface.

* tRx: propagation delay of the receiver part of the physical interface.

They don't appear in the datasheet, either.

I need them in order to calculate de CAN bit timing, due to the application note 1798 (equation 8). Can anyone help me with this issue?

Thanks

Regards

Alban — Thu, 29 Mar 2007 02:18:13 GMT

Hello,

The MCU does NOT include a physical interface. That explains why these characteristics are not in the datasheet.

There are two types of PHY to chose from:

- Low speed and fault tolerant, ( up to 125kb/s)

- High speed. (125kb/s to 1Mb/s)

This is not FSL specific but standard to have both separated.

Cheers,

Alban.