Usb Interface - Sam4s ER-280 SERIES Service Manual

2. Product Specifications
2-5 Interface Specification

2-5-2 USB Interface

2-5-2-1 Specification
Item
Transfer Type
Data Signal
Data Format
Transceiver
Speed
Power
Cable & connector
Support Spec
2-5-1-5 Cable Connection
HOST SIDE
2-8
• BULK
• Bi-Direction, Half-Duplex
• Differential Signal Pair (D+ / D-)
• NRZI Format
• Zero bit Stuffing after 6 ones
• Differential Common Mode Range
• Differential Receive Sensitivity
• Single End Receive Threshold
• 12 Mbps
• Supply Self power
• Cable
: 5m / 2m
• Connector
: B type
• USB Spec Version 1.1
Table 2-9 USB Specification
"A" TYPE PLUG
Figure2-7 USB Cable Connection
Description
: 0.8~2.5[v]
: 200 [mV]
: 0.8~2.5[v]
"B" TYPE PLUG
( USB I/F CABLE )
Remark
PRINTER
SIDE
SAM4S ER-280 SERIES