Avalue Technology HPM-246, Руководство пользователя

Страница: 49 / 97

User’s Manual
HPM-246
User’s Manual
49
57600
115200 [Default]
other side. Long or noisy lines may
require lower speeds.
Flow Control
None [Default]
Hardware RTS/CTS
Software Xon/Xoff
Flow control can prevent data loss from
buffer overflow. When sending data, if
the receiving buffers are full, a
‘stop’
signal can be sent to stop the data flow.
Once the buffers are empty, a
‘start’
signal can be sent to re-start the flow.
Hardware flow control uses two wires to
send start/stop signals.
3.6.2.7 USB Configuration
The USB Configuration menu helps read USB information and configures USB settings.
Item Options Description
USB transfer time-out
1 sec
5 sec
10 sec
20 sec [Default]
The time-out value for Control, Bulk, and
Interrupt transfers.
Device reset time-out
10 sec
20 sec [Default]
30 sec
40 sec
USB mass storage device Start Unit command
time-out.
Device power-up delay
Auto [Default]
Manual
Maximum time the device will take before it
properly reports itself to the Host Controller.
‘Auto’ uses default value: for a Root port it is
100ms, for a Hub port the delay is taken form
Hub descriptor.
Mass Storage Devices
Auto [Default]
Floppy
Forced FDD
Hard Disk
CD-ROM
Mass storage device emulation type.
‘AUTO’
enumerates devices according to their media
format. Optical drives are emulated as
‘CDROM’, drives with no media will be
emulated according to a drive type.