UM10503
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© NXP B.V. 2012. All rights reserved.
User manual
Rev. 1.3 — 6 July 2012
679 of 1269
26.1 How to read this chapter
The Ethernet controller is available on parts LPC435x and LPC433x.
26.2 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
).
26.3 Features
•
10/100 Mbit/s
•
DMA support
•
IEEE 1588 time stamping 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 26: LPC43xx Ethernet
Rev. 1.3 — 6 July 2012
User manual
Table 529. 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
-