ADLINK aTCA-N700 - Manual (Page 42)

aTCA-N700 HW Users Guide
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8.1. Local Management Processor, P2041
The Local Management Processor or LMP, P2041, is responsible for all the device
management including configuration and monitoring with device drivers for the devices
to control. The LMP is equipped with major interfaces, PCIe, local bus and Ethernet to
achieve these goals. Most of the interactions between the CN6880s and the CPU are
executed through the PCIe interface. The status report or other miscellaneous traffic
may be exchanged through the Ethernet ports, which is up to a software architecture
choice. Another major device to be controlled by the CPU is the switch fabric device.
The BCM56842 switch has a PCIe x2 interface.
The LMP has four CPU cores running at up to 1.2GHz with 64-bit DDR2/3 support. For
SerDes interfaces on the board, it provides three PCIe interfaces and two SATA
interfaces. Shown in
Figure 8-2 is the internal architecture of P2041.
Figure 8-2 P2041 Internal Blocks (from datasheet)
8.1.1. Features
Key features of the P2041 include:
•
e500v2 Core [email protected] – Dual Cores
- 36-bit physical addressing
- Double-precision floating-point support
- L1 instruction-cache of 32KB and L1 data cache of 32KB per Core
•
L2 Cache of 512Kbyte with ECC
• Three 10/100/1000 Mbps enhanced three-speed Ethernet controllers
(eTSECs): EC1, EC2 are used on the board.
• High-speed
interfaces:
- Three PCI Express interfaces with Two x1 and one x2
- Two SATA interfaces each with x1
• Serial peripheral interface
• Integrated Security Engine
- XOR Acceleration
- Protocol support includes SNOW, ARC4, 3DES, AES, RSA/ECC,
RNG, single-pass SSL/TLS, Kasumi