Capabilities of 1394b (firewire 800), Iidc v1.31 camera control standards – ALLIED Vision Technologies Pike F-1600 User Manual
Page 38
FireWire
PIKE Technical Manual V5.1.2
38
In addition to common standards shared across manufacturers, a special
Format_7 mode also provided a means by which a manufacturer could offer spe-
cial features (smart features), such as:
•
higher resolutions
•
higher frame rates
•
diverse color modes
as extensions (advanced registers) to the prescribed common set.
Capabilities of 1394b (FireWire 800)
FireWire 800 (S800) was introduced commercially by Apple in 2003 and has a 9-
pin FireWire 800 connector (see details in Hardware Installation Guide and in
Chapter
IEEE 1394b port pin assignment
on page 111). This newer 1394b spec-
ification allows a transfer rate of 800 MBit/s with backward compatibilities to
the slower rates and 6-pin connectors of FireWire 400.
The 1394b capabilities in detail:
•
800 Mbit/s
•
All previous benefits of 1394a (see above)
•
Interoperability with 1394a devices
•
Longer communications distances (up to 500 m using GOF cables)
IIDC V1.31 camera control standards
Twinned with 1394b, the IIDC V1.31 standard arrived in January 2004, evolving
the industry standards for digital imaging communications to include
I/O and RS232 handling, and adding further formats. At such high bandwidths
it has become possible to transmit high-resolution images to the PC’s memory
at very high frame rates.