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2 two-wire serial interface, 3 switch management interface, Ethernet infrastructure – Artesyn ATCA-9405 Installation and Use (May 2014) User Manual

Page 94

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Ethernet Infrastructure

ATCA-9405 Installation and Use (6806800M71G)

94

5.2.2

Two-Wire Serial Interface

The 98CX8234 includes a two-wire serial interface (TWSI) for each of the four port groups of
the switch. The TWSI supports master/slave transactions and multi master environments
(clock synchronization, interface arbitration). The primary use of the TWSI interface is for
switch initialization after reset, when the TWSI operates as a master for serial ROM initialization
of the switch. On ATCA-9405, the TWSI interface is not used and switch is fully configured via
Switch Management Interface.

5.2.3

Switch Management Interface

The 98CX8234 provides four PCI Express interfaces for setup, configuration, maintenance, and
management by the external SP. Each PCI Express interface is associated to one of the four port
groups of the switch. The PCI Express interfaces are connected to PEX8608 PCI Express Switch,
as listed in

Table 6-1

.

3

48

XRP48

RTM Uplink, Data Plane, PHY#0 10G, RXAUI

NLP10142

49

XRP49

10G, RXAUI

50

XRP50

10G, RXAUI

51

XRP51

10G, RXAUI

52

XRP52

RTM Uplink, Data Plane, PHY#1 10G, RXAUI

NLP10142

53

XRP53

10G, RXAUI

54

XRP54

10G, RXAUI

55

XRP55

10G, RXAUI

56-59

XLG58

RTM Uplink, Data Plane, PHY#2 4x RXAUI (10G)

1x XLG (40G)

NLP10142

Table 5-2 Switch Port Assignment (continued)

Port
Group

SerDes
Pair

Port

Destination

Interface Type

PHY