|
Size: 426
Comment:
|
Size: 1635
Comment:
|
| Deletions are marked like this. | Additions are marked like this. |
| Line 5: | Line 5: |
| = Digital Video (DV) Stream over Firewire = | = Introduction = !FireWire or IEEE1394 was developed in 90s by Apple to provide high-speed communications. |
| Line 7: | Line 8: |
| == Requirements == === Hardware === |
!FireWire is available as wireless, fiber optic and coaxial versions, all using the same protocol. The technology is a peer-to-peer standard, that means that every connected device can be a host or client. Firewire can connect up to 63 devices. |
| Line 10: | Line 10: |
| === Software === = Audio Stream over Firewire = |
== Features of !FireWire == * Peer-to-Peer networking allowing up to 63 devices to be connected per bus * non-cyclic network * automatic address selection * no terminators needed in opposition of SCSI * locations are random * Half-duplex 98.304 Mbps 1394a supports 2x (196.608) and 4× (393.216) * 1394b provides full duplex 98.304 Mbps on 1x 2x 4x 8x 16x 32x * Data encoding * 1394b uses improvement of FibreChannel's [[http://en.wikipedia.org/wiki/8b/10b_encoding|8b10b]] encoding * Support for Direct Memory Access (DMA) * Data-Strobe encoding providing less jitter than normal clock-data * Like USB, backwards compatible * Isochronous which means that between cycles are equal time intervals == Advantages of !FireWire == * hot pluggable (support by udev) * outstanding performance * True data rates where USB normally only provided half the theoretical rate * direct map to processor * Direct Memory Access for FireWire equipment |
FireWire and Firewire page combined
Introduction
FireWire or IEEE1394 was developed in 90s by Apple to provide high-speed communications.
FireWire is available as wireless, fiber optic and coaxial versions, all using the same protocol. The technology is a peer-to-peer standard, that means that every connected device can be a host or client. Firewire can connect up to 63 devices.
Features of !FireWire
- Peer-to-Peer networking allowing up to 63 devices to be connected per bus
- non-cyclic network
- automatic address selection
- no terminators needed in opposition of SCSI
- locations are random
- non-cyclic network
- Half-duplex 98.304 Mbps 1394a supports 2x (196.608) and 4× (393.216)
- 1394b provides full duplex 98.304 Mbps on 1x 2x 4x 8x 16x 32x
- Data encoding
1394b uses improvement of FibreChannel's 8b10b encoding
- Support for Direct Memory Access (DMA)
- Data-Strobe encoding providing less jitter than normal clock-data
- Like USB, backwards compatible
- Isochronous which means that between cycles are equal time intervals
Advantages of !FireWire
- hot pluggable (support by udev)
- outstanding performance
- True data rates where USB normally only provided half the theoretical rate
- direct map to processor
Direct Memory Access for FireWire equipment