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Title: Tolapai  
Author: World Heritage Encyclopedia
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Subject: List of Intel microprocessors, Intel 80486 OverDrive, List of Intel Pentium Pro microprocessors, Intel X79, Stealey (microprocessor)
Publisher: World Heritage Encyclopedia


Tolapai is the code name of Intel's embedded system-on-a-chip (SoC) which combines an Pentium M (Dothan) processor core, DDR2 memory controllers and I/O controllers, and a QuickAssist integrated accelerator unit for security functions.[1]


The Tolapai embedded processor has 148 million transistors on a 90 nm process technology, 1088-ball FCBGA with a 1.092mm pitch, and comes in a 37.5mm × 37.5mm package. It is also Intel's first integrated x86 processor, chipset and memory controller since 1994's 80386EX.[2]

Intel EP80579 integrated processor for embedded computing:

  • CPU: Pentium M clocked from between 600 MHz and 1.2 GHz
  • Cache: 256 KB
  • Package: 1088-ball flip chip BGA
  • Memory: DDR2 from 400- to 800 MHz; MCH supports DIMM or memory down with optional 32-/64-bit and ECC configurations
  • Bus: One local expansion bus for general control or expanded peripheral connections
  • PCI Express: PCIe root complex interface in 1 ×8, 2 ×4, or 2 ×1 configurations
  • Storage: 2× SATA (Gen1 or Gen2) interfaces
  • Networking: 3× 10/100/1000 Ethernet MACs supporting RGMII or RMII, and Management Data Input/Output (MDIO)
  • USB: 2× Universal Serial Bus (1.1 or 2.0) interfaces
  • GPIO: 36× General Purpose Input/Output ports
  • CAN: 2× Controller area network 2.0b interfaces
  • High Speed Serial: 3× HSS ports for T1/E1 or FXS/FXO connections
  • Serial: 1× synchronous serial port (SSP)
  • UARTS: 2× 16550-compatible UARTs
  • SMB: 2× System Management Bus (SMBus) interfaces
  • LPC: 1× Low Pin Count (LPC 1.1) interface
  • SPI: 1× Serial Peripheral Interface Bus (SPI) boot interface
  • RTC: Integrated real-time clock (RTC) support
  • EDMA: Enhanced DMA (EDMA) engine with low latency memory transfers; supports multiple peer-to-peer configurations
  • Operating temperature: 0 to 70 degrees C (most models); −40 to 85 degrees C (some models)

List of Intel 80579 processors

Frequency L2
FSB Mult. Voltage TDP Socket Release date Part
price (USD)
without QuickAssist
EP80579 Integrated Processor, 600 MHz
  • SLJ6D (B1)
  • SLJ6F (B1)
600 MHz 256 KB 400 MT/s 1 V
11 W
FCBGA1088 Q3 2008
  • NU80579EZ600C
  • NU80579EZ600CT
EP80579 Integrated Processor, 1066 MHz
  • SLJ6C (B1)
1.07 GHz 256 KB 533 MT/s 1.3 V
18 W
FCBGA1088 Q3 2008
  • NU80579EZ004C
EP80579 Integrated Processor, 1200 MHz
  • SLJ6B (B1)
1.2 GHz 256 KB 533 MT/s 1.3 V
19 W
FCBGA1088 Q3 2008
  • NU80579EZ009C
with QuickAssist
EP80579 Integrated Processor with QuickAssist, 600 MHz
  • SLJ6A (B1)
600 MHz 256 KB 400 MT/s 1 V
13 W
FCBGA1088 Q3 2008
  • NU80579EB600C
EP80579 Integrated Processor with QuickAssist, 1066 MHz
  • SLJ69 (B1)
  • SLJ6E (B1)
1.07 GHz 256 KB 533 MT/s 1.3 V
20 W
FCBGA1088 Q3 2008
  • NU80579ED004C
  • NU80579ED004CT
EP80579 Integrated Processor with QuickAssist, 1200 MHz
  • SLJ68 (B1)
1.2 GHz 256 KB 533 MT/s 1.3 V
21 W
FCBGA1088 Q3 2008
  • NU80579ED009C

See also


  1. ^ "Cnet News: Live from Hot Chips 19: Session 7, Networking". Retrieved 2007-12-31. 
  2. ^ Intel confirms details of Tolapai, a SoC embedded processor Ars Technica, August 30, 2007

External links

  • Intel Introduces Future VPN Solution: Tolapai
  • Ars Technica: Intel Confirms details of Tolapai, a SoC embedded processor
  • Cnet News: Live from Hot Chips 19: Session 7, Networking
  • Intel QuickAssist Acceleration Technology for Embedded Systems
  • Embedded Intel EP80579 Integrated Processor
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