MV78100
Discovery™ Innovation Series CPU Family
Hardware Specifications
PRODUCT OVERVIEW
Building upon the Marvell® high-performance Sheeva™
CPU core, the MV78100 is part of the Discovery™
Innovation series CPU family.
• Integrated Storage Accelerator engine (two XOR
DMA or iSCSI CRC engines)
• Timers
• Interrupt controller
Sheeva™ Dual-Issue CPU with FPU support
The MV78100 is optimally designed for a broad range of
applications ranging from sophisticated routers,
switches, and wireless-base stations to high-volume
storage and laser printer applications.
• Up to 1.2 GHz
• Super-scalar, dual-issue CPU
• Single-precision and double-precision FPU support
• 32-bit and 16-bit RISC architecture
• Compliant with v5TE architecture, published in the
ARM Architect Reference Manual, Second Edition
• Supports 32-bit instruction set for performance and
flexibility
The MV78100 incorporates a fully ARMv5TE-compliant
dual-issue CPU core with a double-precision, IEEE
compliant Floating-point Unit (FPU), and 512 KB of
L2 cache.
Its innovative crossbar architecture, advanced
communications peripherals, and performance-tuned
interfaces, make it a perfect, high-performance solution
for embedded applications such as:
• Supports 16-bit Thumb instruction set for code
density
• Supports DSP instructions to boost performance
for signal processing applications
• Includes MMU to support virtual memory features
• MPU can be used instead of MMU
• 32-KB I-Cache and 32-KB D-Cache, parity
protected
• 512-KB unified L2 cache, ECC protected
• 64-bit internal data bus
• Variable pipeline stages—six to nine stages
• Out-of-order execution for increased performance
• In-order retire via Reordering Buffer (ROB)
• Branch Prediction Unit
• Printers
• Core and edge routers
• Cellular base stations
• Ethernet switch management
• Storage arrays
• Network Attached Storage (NAS) devices
The MV78100 Includes
• High-performance Sheeva™ dual-issue CPU with
IEEE compliant FPU support
• 512 KB L2 cache
• High bandwidth DDR II memory interface (32/64-bit
DDR2–800 MHz data rate with an 8-bit ECC
option)
• 8/16/32-bit device bus with up to five chip selects,
and with NAND and NOR Flash support
• Two x4 wide PCI Express ports with integrated
PHY; each one can also act as four x1 ports
• Two Gigabit Ethernet MAC controllers
• Three USB 2.0 ports with integrated PHYs
• Two SATA 2.0 ports with integrated 3 Gbps SATA II
PHY
• Supports JTAG/ARM-compatible ICE
• Supports both Big and Little Endian modes
DDR2 SDRAM controller
• 40/72-bit interface (32/64-bit data + 8-bit ECC)
• Up to 400 MHz clock frequency (DDR2–800 MHz
data rate)
• DDR SDRAM with a clock ratio of 1:N and 2:N
(up to 1:5) between the DDR SDRAM and the
Sheeva™ core, respectively
• Security Cryptographic engine
• SSTL 1.8V I/Os
• Four 16550 compatible UARTs
• Two channels SLIC/Codec TDM interface
• Four IDMA engines
• Auto-calibration of I/Os output impedance
• Supports four DRAM banks
• Supports all DDR devices, densities up to 2 Gb
• Up to 4 GB address space
Copyright © 2008 Marvell
MV-S104552-U0 Rev. D
Page 3
December 6, 2008, Preliminary
Document Classification: Proprietary Information
MARVELL [ MARVELL TECHNOLOGY GROUP LTD. ]
