Phytec phyCORE-LPC2292/94, Hardware Manual

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phyCORE-LPC2292/94
36
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PHYTEC Messtechnik GmbH 2006 L-658e_5
3.13 J600, J601, J616 CAN Transceiver Configuration
The three Jumpers J600, J601 and J616 are used to configure both
CAN transceivers U605 and U606. If the Jumpers J600 and J601 are
placed in the corresponding position, the CAN transceivers can be
switched into power-down mode via controller port pins P019 and
P020.
The following configurations are possible:
CAN Transceiver Activation J600 J601
CAN transceiver U605 always active 1 + 2* don't care
CAN transceiver U605 mode is
controlled via port P020 on the
LPC2292/94 microcontroller
2 + 3 don't care
CAN transceiver U606 always active don't care 1 + 2*
CAN transceiver U605 mode is
controlled via port P019 on the
LPC2292/94 microcontroller
don't care 2 + 3
* = Default setting
Table 21: J600, J601 CAN Transceiver Activation
Jumper J616 is used to supply power to the CAN transceivers U605
and U606. Routing the VDD_V3V3 supply voltage to pin 5 of the
relevant CAN transceiver is only required if the TLE 6250V3V3
populates the phyCORE module. If the Philips 82C251 CAN
transceiver is populated, the jumper must be open.