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MPC8378CVRALDA 数据表(PDF) 5 Page - Freescale Semiconductor, Inc |
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MPC8378CVRALDA 数据表(HTML) 5 Page - Freescale Semiconductor, Inc |
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5 / 126 page ![]() MPC8378E PowerQUICC™ II Pro Processor Hardware Specifications, Rev. 2 Freescale Semiconductor 5 Overview There are two I2C controllers. These synchronous, multi-master buses can be connected to additional devices for expansion and system development. The DUART supports full-duplex operation and is compatible with the PC16450 and PC16550 programming models. 16-byte FIFOs are supported for both the transmitter and the receiver. The main component of the enhanced local bus controller (eLBC) is its memory controller, which provides a seamless interface to many types of memory devices and peripherals. The memory controller is responsible for controlling eight memory banks shared by a NAND Flash control machine (FCM), a general-purpose chip-select machine (GPCM), and up to three user-programmable machines (UPMs). As such, it supports a minimal glue logic interface to SRAM, EPROM, NOR Flash EPROM, NAND Flash, EPROM, burstable RAM, regular DRAM devices, extended data output DRAM devices, and other peripherals. The eLBC external address latch enable (LALE) signal allows multiplexing of addresses with data signals to reduce the device pin count. The enhanced local bus controller also includes a number of data checking and protection features, such as data parity generation and checking, write protection, and a bus monitor to ensure that each bus cycle is terminated within a user-specified period. The local bus can operate at up to 133 MHz. The system timers include the following features: periodic interrupt timer, real time clock, software watchdog timer, and two general-purpose timer blocks. 1.8 Security Engine The optional security engine is optimized to handle all the algorithms associated with IPSec, IEEE 802.11i, and iSCSI. The security engine contains one crypto-channel, a controller, and a set of crypto execution units (EUs). The execution units are: • Data encryption standard execution unit (DEU), supporting DES and 3DES • Advanced encryption standard unit (AESU), supporting AES • Message digest execution unit (MDEU), supporting MD5, SHA1, SHA-256, and HMAC with any algorithm • One crypto-channel supporting multi-command descriptor chains 1.9 PCI Controller The PCI controller includes the following features: • PCI Specification Revision 2.3 compatible • Single 32-bit data PCI interface operates at up to 66 MHz • PCI 3.3-V compatible (not 5-V compatible) • Support for host and agent modes • On-chip arbitration, supporting 5 external masters on PCI • Selectable hardware-enforced coherency |
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