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Communications Controller for
PowerPC
廬
Processor
GT-96132
PRODUCT OVERVIEW
The Marvell
簍
Horizon
陋
GT-96132 communications controller is the industry-leading solution for channelized
簍
WAN applications such as low to mid-range routers and access line cards that are architected around PowerPC
processors. The Horizon controller enables convergence of voice, video and data for LAN/WAN enterprise routers.
The integrated NetGX
陋
off-loading engine provides ready-to-use solutions for IPSec off-loading, ATM acceleration
and higher-level flow classification. Other integrated system controller functions such as PCI bridges, Ethernet
Media Access Controllers (MACs), DRAM controller, interrupt controllers, and timers provide design flexibility and
shorter time-to-market.
CPU
64-Bit CPU Bus
SDRAM
Boot Flash
64-Bit
8-Bit
NetGX陋
Coprocessor
HDLC
HDLC
QUAD
T1 Framer
& LIU
HDLC
HDLC
INTRANET
10/100 ETHERNET
INTRANET
10/100 ETHERNET
64-Bit/66 MHz
WAN INTERFACE
WAN INTERFACE
WAN INTERFACE
WAN INTERFACE
T1
T1
T1
T1
Auxiliary Port (UART)
Debug Port (UART)
PCI Arbiter
PCI
Fig 1. Horizon Communications Controller Block Diagram
FEATURES
樓
64-bit PowerPC CPU bus interface
脨 All 64-bit PowerPC CPUs with 60x bus including
MPC603/740/750/755, MPC8260 and IBM750CX
脨 100 MHz CPU bus frequency
樓
High-performance 64-bit SDRAM controller
脨 100 MHz memory interface
脨 4 GB address space
脨 Supports 2-way and 4-way bank interleaving
樓
High-performance PCI 2.1/66 MHz interface
脨 Dual 32-bit or single 64-bit configurable
脨 Programmable PCI bus arbiter
脨 I20 and plug-and-play support
樓
Two 10/100 Mbps Fast Ethernet (FE) MACs
脨 MII or RMII interface
脨 Programmable packet filtering (up to 8K MAC addresses)
脨 4 transmit and 2 receive priority queues
脨 Hardware-based priority queuing by
- MAC address
- 802.1p Tag
- DiffServ (Layer 3 Header)
樓
Eight FlexTDM channels and Multi-Channel Serial Controllers (MCSC)
脨 Fully programmable for all standard and proprietary TDM interfaces
脨 Support up to 256 channels
脨 512 virtual DMA channels
樓
Eight Multi-Protocol Serial Controllers (MPSC)
脨 HDLC, BiSync, UART, and transparent mode
脨 Up to 55 Mbps operation
BENEFITS
樓
Accommodates the most powerful 64-bit RISC processors for
high-performance communications systems
樓
Accomodates all popular memory devices
樓
Expands system functionality with support for PCI legacy devices
樓
Versatile and high-performance Ethernet interfaces
脨 MII interfaces for easy connection to Ethernet LAN
脨 RMII interfaces for reduced pin count chip-to-chip connections
脨 Ethernet MACs support high-performance features with 8K MAC
multi-cast addresses, 2 receive and 4 transmit priority queuing
(based on MAC address, 802.1q tag or DiffServ)
樓
Support all standard TDM interfaces up to 256 channels for
multiple T1 lines or partial T3 line
樓
Provide design flexibilty with support for multiple protocols
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