K60P100M100SF2RM Datasheet, PDF (140/1809 Pages) Freescale Semiconductor, Inc – K60 Sub-Family Reference Manual

Communication interfaces
3.9 Communication interfaces
3.9.1 Ethernet Configuration
This section summarizes how the module has been configured in the chip. For a
comprehensive description of the module itself, see the module’s dedicated chapter.
Peripheral
bridge 1
Register
access
Transfers
Ethernet
Module signals
Topic
Full description
System memory map
Clocking
Transfers
Signal Multiplexing
Figure 3-51. Ethernet configuration
Table 3-62. Reference links to related information
Related module
Ethernet
Crossbar switch
Port control
Reference
Ethernet
System memory map
Clock Distribution
Crossbar switch
Signal Multiplexing
3.9.1.1 Ethernet Clocking Options
The Ethernet module uses the following clocks:
• The device's system clock is connected to the module clock, as named in the Ethernet
chapter. The minimum system clock frequency for 100 Mbps operation is 25 MHz.
• An externally-supplied 25 MHz MII clock or 50 MHz RMII clock. This clock is used
as the timing reference for the external MII or RMII interface.
• A time-stamping clock for the IEEE 1588 timers.
For more details on the Ethernet module clocking options, see Ethernet Clocking.
K60 Sub-Family Reference Manual, Rev. 6, Nov 2011
140
Freescale Semiconductor, Inc.