Motorola MPC5200 - Manual (Page 24)

M5200E-2 KADAK MPC5200 FEC Device Driver
MPC5200 FEC Ethernet
Device Driver Data Sheet (continued)
Parameters The KwikNet Configuration Manager can be used to define the following
set of device dependent parameters. These parameters are entered in the
Device Driver Definition on the
Networks property page.
MSB LSB
1 Ethernet Address (high 16 bits) Unit (reserved) W C D S
2 Ethernet Address (low 32 bits)
3 Reserved
4 IRQ-BC IRQ-FEC
5 Number of Transmit Buffers Number of Receive Buffers
Unit This parameter selects the FEC channel to be used for network
communication. Since the MPC5200 FEC controller has only one
channel, a value of 0 must be used.
Attributes The low order 8 bits of the first parameter describe the device attributes
supported by the driver. Reserved and undefined fields must be 0.
S This bit defines the FEC operation speed. If this bit is 0, the FEC will
operate at 10Mbps. If this bit is 1, the FEC will operate at 100Mbps.
D This bit defines the duplex mode of operation. If this bit is 0, the FEC
channel will operate in half duplex mode. If this bit is 1, the FEC channel
will operate in full duplex mode.
C This bit determines if the driver must accommodate data caching. If this
bit is 0, it will be assumed that data caching may be enabled and that
caching effects must be considered. If this bit is 1, it will be assumed that
data caching will not be present and that caching effects can be ignored.
Note that this attribute will only be effective if symbol DD_DCACHE in
header file M5200E.H is defined to be 1, thereby enabling the device driver
to support this data cache accommodation feature.
W This bit determines the physical device (PHY) wiring mode selection. If
this bit is 0, the 18-wire (MII) mode is assumed. If this bit is 1, the 7-wire
mode is assumed.