10/100T Ethernet Port - Motorola MPC564EVB User Manual

B_EN and C_EN Option Pads, CN1 and CN2 Option Cut-Aways
These options provide access to the output enable and slew rate control of the respective CAN
transceiver. By default the transceivers are set to provide minimum slew rate (fast edge) and to be
constantly enabled for output. The configuration of the transceivers maybe modified for slew rate
or output control or both. Signaling CAN bus slew rate can be modified by increasing the value of
R66 and R67 for CAN_B and CAN_C respectfully. Opening the CN1 and CN2 away options for
CAN_B and CAN_C respectfully allows a MPC564 I/O port to be applied to the B_EN and C_EN
option pads to provide output control. A high level on the B_EN or C_EN would disable the
respective CAN transceiver output. See the PCA82C250 data sheet on the support CD for
additional information.
CAN_A, CAN_B, and CAN_C Port Connectors
These ports provide the CAN transceiver input and output connection to the CAN bus. No bias or
termination for the CAN bus is provided on the CMD-5xx board, if required the user must install
these components in the proto area or elsewhere on the CAN bus. Following are the pin
connections for the ports:
Pin 1 = CAN-Hi level signal
Pin 2 = CAN-Lo level signal
Pin 3 = Ground or common (this is required for proper return path on CAN bus)
Pin 4 = +5Vsupply for remote use or bias of CAN bus.
CAN_A, CAN_B, and CAN_C Port Termination Options
The RA1-3, RB1-3, and RC1-3 option locations provide the respective CAN A, B, or C port with
the ability to add bias and/or termination resistance. RA1, RB1, and RC1 locations provide low
bias (to ground) on the respective CAN Port CAN Hi signal. RA3, RB3, and RC3 locations provide
high bias (to +5V) on the respective CAN Port CAN Low signal. RA2, RB2, and RC2 locations
provide termination between the respective CAN Port CAN Hi and CAN Low signals.

1.4.3 10/100T Ethernet Port

The MPC564EVB has an Ethernet controller (SMSC LAN91C111 U20) operating at 10M bits/sec
or 100Mbits/sec (see the device data sheet on the support CD forr operation details). The dBUG
ROM monitor is programmed to allow a user to download files over a network to memory in
different formats. The compiler-formats currently supported are S-Record, COFF, ELF, or Image
(raw binary). Refer to Appenix A for details on how to configure the board for network download.
The Ethernet registers are located at chip select CS3 base address in the address range 0x0000 -
0x000F. The access is 16 bits wide or half word transfers only. The LAN91C111 device applies a
register bank selection technique to provide a minimum memory space size. Users should review
the device data sheet in detail for operation notes. The debug monitor applies the Ethernet for file
downloads only, no high level stacks are applied in the sample source code.
RJ45 jack J3 of the Ethernet port provides a direct to HUB type connection. The Ethernet cable
provided with the MPC564EVB kit is a crossover type for direct connection of the EVB to a PC
host network card. If connection to a HUB is desired, a standard Ethernet cable should be applied.
PRELIMINARY—SUBJECT TO CHANGE WITHOUT NOTICE
Chapter 1. MPC564EVB Board
Communication Ports
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