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Intel
®
IXP45X and Intel
®
IXP46X Product Line of Network Processors
February 2007 HDD
Document Number: 305261; Revision: 004 43
General Hardware Design Considerations—Intel
®
IXP45X and Intel
®
IXP46X Product Line of
Network Processors
3.10 HSS Interface
NPE A has an integrated High-Speed Serial (HSS) module, whose primary function is to
provide connectivity between the internal NPE A and the external HSS interface. There
are two HSS ports that can directly interface to SLIC/CODEC devices for voice
applications, or serial DSL framers. The HSS ports are software configurable to support
various serial protocols, such as T1/ E1/J1, and MVIP. For a list of supported protocols,
see the Intel
®
IXP400 Software Programmer’s Guide.
Figure 13. UTOPIA Interface Example
UTP_OP_CLK
UTP_OP_DATA[7:0]
UTP_OP_ADDR[4:0]
UTP_OP_SOC
UTP_OP_FCO
UTP_OP_FCI
UTP_IP_CLK
UTP_IP_DATA[7:0]
UTP_IP_ADDR[4:0]
UTP_IP_SOC
UTP_IP_FCO
Intel
®
IXP45X/46X
Product Line
Network Processor
UTOPIA Level 2
Interface
TXCLK
TXDATA[7:0]
TXADDR[4:0]
TXSOC
TXENB#
TXCLAV
RXCLK
RXDATA[7:0]
RXADDR[4:0]
RXSOC
RXENB#
UTP_IP_FCI RXCLAV
ATM Layer Device
ADSL Framer
Multi-Channel
AFE RJ11
Analog Front
End
AFE RJ11
SDRAM
Local Memory
EX_BUS
25 MHz
25 MHz
Control Signals
B4107-003