Intel Quark

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Intel Galileo-Board with Quark-Processor

Intel Quark is a line of 32-bit x86 SoCs by Intel, designed for small size and low power consumption, and targeted at new markets including wearable devices. The line was introduced at Intel Developer Forum in 2013. They are smaller and slower than Atom processors and consume less power. They lack support for SIMD instruction sets (such as MMX and SSE)[1] and only support embedded operating systems. Quark powers the Intel Galileo developer microcontroller board.[2] The CPU instruction set is the same as a Pentium (P54C/i586) CPU[3]

The first product in the Quark line is the single-core 32 nm X1000 SoC with a clock rate of up to 400 MHz. The system includes several interfaces, including PCIe, UART, I2C, Fast Ethernet, USB 2.0, SDIO, PMC, and GPIO. There are 512 kilobytes of on-chip embedded SRAM and an integrated DDR3 memory controller.[4][5]

A second Intel product based on Quark, the Intel Edison microcomputer, was presented in January 2014. It has a form factor close to the size of an SD card, and is capable of wireless networking using WiFi or Bluetooth.[6]

"Clanton" (32 nm)[edit]

(The L2 cache column shows the size of the L1 cache)

Model
number
sSpec
number
Frequency GPU
frequency
L2
cache
I/O bus Memory Voltage TDP Socket Release date Part
number(s)
Release
price (USD)
Quark X1000
  • SR1BY (A0)
400 MHz N/A 16 KB DDR3-800
  • FC-BGA11E
Q4'13
  • DH8066101538300
$9.63
Quark X1001
  • SR1VB (A0)
400 MHz N/A 16 KB DDR3-800
  • FC-BGA11E
Q2'14
  • DHQ1ET
$11.77
Quark X1010
  • SR1BZ (A0)
400 MHz N/A 16 KB DDR3-800
  • FC-BGA11E
Q1'14
  • DH8066101555100
$10.16
Quark X1011
  • SR1VC (A0)
400 MHz N/A 16 KB DDR3-800
  • FC-BGA11E
Q2'14
  • DHQ1ECCET
$12.31
Quark X1020
  • SR1VW (A0)
400 MHz N/A 16 KB DDR3-800
  • FC-BGA11E
Q2'14
  • DHQ1ECCSECCTS1
$11.45
Quark X1020D
  • SR1BX (A0)
400 MHz N/A 16 KB DDR3-800
  • FC-BGA11E
Q1'14
  • DH8066101531900
$10.70
Quark X1021
  • SR1WH (A0)
400 MHz N/A 16 KB DDR3-800
  • FC-BGA11E
Q2'14
  • DHQ1ECCSECETS1
$13.39
Quark X1021D
  • SR1VA (A0)
400 MHz N/A 16 KB DDR3-800
  • FC-BGA11E
Q2'14
  • DHQ1ECCSECET
$12.85

Segfault bug[edit]

Intel Quark SoC X1000 contains a bug #71538[7] that "under specific circumstances" results in crash (segfault). The workaround Intel implemented in supported Yocto Linux is to remove the affected LOCK instruction from the compiled code. General purpose Linux distributions such as Debian are affected by the bug and the fix is not easy to implement as multithreading systems require LOCK instruction to function properly.[8]

References[edit]

External links[edit]