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UM10503
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© NXP B.V. 2015. All rights reserved.
User manual
Rev. 2.1 — 10 December 2015
819 of 1441
28.1 How to read this chapter
The Ethernet controller is available on parts LPC437x/LPC43S7x, LPC436x/LPC43S6x,
LPC435x/LPC43S5x, and LPC433x/LPC43S3x.
The MII is not available on the LQFP144 and TFBGA100 packages.
28.2 Basic configuration
The Ethernet controller is configured as follows:
•
See
for clocking and power control.
•
The Ethernet is reset by the ETHERNET_RST (reset # 22).
•
The Ethernet interrupt is connected to interrupt slot # 5 in the NVIC.
•
The Ethernet wake-up packet indicator is connected to slot # 8 in the event router.
•
Set the Ethernet mode to RMII or MII in the CREG6 register in the CREG block (see
28.3 Features
•
10/100 Mbit/s
•
DMA support
•
IEEE 1588
Time stamp
ing block
•
IEEE 1588 advanced
Time stamp
support (IEEE 1588-2008 v2)
•
Power management remote wake-up frame and magic packet detection
•
Supports both full-duplex and half-duplex operation
–
Supports CSMA/CD Protocol for half-duplex operation.
–
Supports IEEE 802.3x flow control for full-duplex operation.
–
Optional forwarding of received pause control frames to the user application in
full-duplex operation.
–
Back-pressure support for half-duplex operation.
–
Automatic transmission of zero-quanta pause frame on deassertion of flow control
input in full-duplex operation.
UM10503
Chapter 28: LPC43xx/LPC43Sxx Ethernet
Rev. 2.1 — 10 December 2015
User manual
Table 599. Ethernet clocking and power control
Base clock
Branch
clock
Operating
frequency
Notes
Ethernet
register
interface clock
BASE_M4_CLK
CLK_M4_
ETHERNET
up to
204 MHz
-