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Intel
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IXP400 Software
Access-Layer Components: Ethernet Access (IxEthAcc) API
April 2005 IXP400 Software Version 2.0 Programmer’s Guide
144 Document Number: 252539, Revision: 007
The relationship between IxEthAcc, IxEthDB, and IxEthMii is shown in Figure 53.
The control path component remaining for IxEthAcc is the provision of the MAC registers with
their required functionality.
Figure 53. IxEthAcc and Secondary Components
IXP4XX
IxQMgr
AHB
Queue
Manager
IxEthAcc
IxEthMii
(PHYconfiguration)
IxNpeMh
Linux Eth driver
(ixp425_eth.c)
VxWorks END
driver
(IxEthAccEnd.c)
PHY (e.g. LXT972
chip on IXDP425)
Linux*
Ethernet stack
VxWorks*
Ethernet stack
Data Plane
Control Plane
Codelets and
test code
IxEthDB
Access
Layer
NPE
Ethernet
coprocessor
NPE core
MAC Control
Registers, MII
interface
B2369-02