|
Firewire (1394) and USB 2.0
| Characteristic |
Firewire (1394) |
USB 2.0 |
| Bus Type |
I/O |
I/O |
| Basic data bus width (Signals) |
4 |
2 |
| Clocking |
asynchronous |
asynchronous |
| Theoretical peak bandwidth |
50 MB/sec (Firewire 400) or 100 MB/sec (Firewire
800) |
0.2 MB/sec (low speed), 1.5 MB/sec (full
speed), or 60 MB/sec (high speed) |
| Hot plugable |
yes |
yes |
| Maximum number of devices |
63 |
127 |
| Maximum bus length (copper wire) |
4.5 meters |
5 meters |
| Standard name |
IEEE 1394, 1394b |
USE Implementors Forum |
Source: Patterson, David A.. Computer Organization and Design: The
Hardware/Software Interface, Third Edition Chapter 8.4
|
