K60P100M100SF2RM Datasheet, PDF (1197/1809 Pages) Freescale Semiconductor, Inc – K60 Sub-Family Reference Manual

Chapter 44 10/100-Mbps Ethernet MAC (ENET)
TFC_PAUSE
PAUSE_DUR
Pause Frame
Generation
Programmable
Threshold
Figure 44-58. Pause Frame Generation Overview
Note
Although the flow control mechanism should prevent any FIFO
overflow on the MAC core receive path, the core receive FIFO
is protected. When an overflow is detected on the receive FIFO,
the current frame is truncated with an error indication set in the
frame status word. The frame should subsequently be discarded
by the user application.
44.4.7 Magic Packet Detection
Magic packet detection wakes a node that is put is power-down mode by the node
management agent. Magic packet detection is supported only if the MAC is configured in
sleep mode.
44.4.7.1 Sleep Mode
To put the MAC in sleep mode, set ENETn_ECR[SLEEP]. At the same time
ENETn_ECR[MAGICEN] should be set to enable magic packet detection.
In addition, when the processor is in stop mode, sleep mode is entered, without affecting
the ENETn_ECR register bits.
When the core is in sleep mode:
• The MAC transmit logic is disabled
K60 Sub-Family Reference Manual, Rev. 6, Nov 2011
Freescale Semiconductor, Inc.
1197