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MPC8568CVTANGJA Datasheet(PDF) 4 Page - Freescale Semiconductor, Inc |
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MPC8568CVTANGJA Datasheet(HTML) 4 Page - Freescale Semiconductor, Inc |
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4 / 139 page  MPC8568E/MPC8567E PowerQUICC III Integrated Processor Hardware Specifications, Rev. 1 4 Freescale Semiconductor MPC8568E Overview — Byte-accessible ECC uses read-modify-write transaction accesses for smaller-than-cache-line accesses. 1.2.2 e500 Coherency Module (ECM) and Address Map The e500 coherency module (ECM) provides a mechanism for I/O-initiated transactions to snoop the bus between the e500 core and the integrated L2 cache in order to maintain coherency across local cacheable memory. It also provides a flexible switch-type structure for core- and I/O-initiated transactions to be routed or dispatched to target modules on the device. The MPC8568E supports a flexible 36-bit physical address map. Conceptually, the address map consists of local space and external address space. The local address map is supported by eight local access windows that define mapping within the local 36-bit (64-Gbyte) address space. The MPC8568E can be made part of a larger system address space through the mapping of translation windows. This functionality is included in the address translation and mapping units (ATMUs). Both inbound and outbound translation windows are provided. The ATMUs allows the MPC8568E to be part of larger address maps such as the PCI or PCI Express 64-bit address environment and the RapidIO environment. 1.2.3 QUICC Engine • Integrated 8-port L2 Ethernet switch — 8 connection ports of 10/100 Mbps MII/RMII & one CPU internal port — Each port supports four priority levels — Priority levels used with VLAN tags or IP TOS field to implement QoS — QoS types of traffic, such as voice, video, and data • Includes support for the following protocols: — ATM SAR up to 622 Mbps (OC-12) full duplex, with ATM traffic shaping (ATF TM4.1) for up to 64K ATM connections — ATM AAL1 structured and unstructured Circuit Emulation Service (CES 2.0) — IMA and ATM Transmission convergence sub-layer — ATM OAM handling features compatible with ITU-T I.610 — PPP, Multi-Link (ML-PPP), Multi-Class (MC-PPP) and PPP mux in accordance with the following RFCs: 1661, 1662, 1990, 2686 and 3153 — IP termination support for IPv4 and IPv6 packets including TOS, TTL and header checksum processing — ATM (AAL2/AAL5) to Ethernet (IP) interworking — Extensive support for ATM statistics and Ethernet RMON/MIB statistics. — 256 channels of HDLC/Transparent or 128 channels of SS#7 • Includes support for the following serial interfaces: — Two UL2/POS-PHY interfaces with 124 Multi-PHY addresses on UTOPIA interface each or 31 Multi-PHY addresses on the POS interface each. |
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