Phytec phyCORE-LPC2292/94, Hardware Manual

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Jumpers
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PHYTEC Messtechnik GmbH 2006 L-658e_5
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3.12 J500 through J509 Ethernet Controller SMSC
LAN91C111Configuration
As an option, a LAN91C111 Ethernet controller from SMSC can
populate the phyCORE-LPC2292/94 at U501.
If the Ethernet controller populates the phyCORE module, one of two
possible Chip Select signals for controlling access to the LAN91C111
can be selected using Jumper J502. Jumper J501 selects, which of the
microcontroller interrupts connects with the interrupt output
(LAN_IRQ) of the Ethernet controller. The LAN_IRQ signal can be
connected to a 10k pull-up resistor with the help of Jumper J504.
Connection of the LAN91C111 controller's Ready (LAN_RDY) signal
to port pin P018 is established by closing Jumper J503.
The following configurations are possible:
/CS Signal Configuration J502
/CS2 from the µC selects Ethernet controller 1 + 2*
/CS3 from the µC selects Ethernet controller 2 + 3
* = Default setting
Table 14: J503 Ethernet Chip Select Signal Configuration
Interrupt of the Ethernet Controller... J501
... connects to EINT0 (P016) of the microcontroller 1 + 2*
... connects to EINT1 (P014) of the microcontroller 2 + 3
… not connected to the microcontroller open
* = Default setting
Table 15: J501 Ethernet Interrupt Signal Configuration