4. History Data Details
4.2
USB History Data
Table 4-2 shows the USB-related history data.
Table 4-2 USB history data list
History data
Summary
USB: VBUS overcurrent
Detected VBUS overcurrent.
USB: LS device
Detected LS device connection.
USB: FS device
Detected FS device connection.
USB: HS device
Detected HS device connection.
USB: storage device
Detected storage device connection.
USB: unsupported device
Detected unsupported device connection.
USB: more than 3 storage device
Detected connection of 3 or more storage devices.
USB: more than 4 hubs
Detected connection of 4 or more USB hubs.
USB: phase err
Detected phase error.
USB: CBW
Issued CBW.
USB: Data IN
Issued Bulk IN (except CSW).
USB: Data OUT
Issued Bulk OUT (except CBW).
USB: CSW
Received CSW.
USB: cleared STALL
Issued request to clear STALL.
USB: Mass Storage Reset
Issued Mass Storage Reset (specified device reset).
4.2.1
USB: VBUS Overcurrent
This history entry is recorded when an overcurrent is detected in the VBUS. If this history
entry appears when an USB device is connected, the current drawn from the VBUS by the
USB device may exceed the supply capacity.
4.2.2
USB: LS device
This history entry is recorded when an LS (Low Speed) device is connected. This history
entry is not recorded if connected via a USB hub.
4.2.3
USB: FS device
This history entry is recorded when an FS (Full Speed) device is connected. FS devices
include USB hubs recognized as FS. This history entry is not recorded if connected via a
USB hub.
4.2.4
USB: HS device
This history entry is recorded when an HS (High Speed) device is connected. HS devices
include USB hubs recognized as HS. This history entry is not recorded if connected via a
USB hub.
S1R72U16 Development
EPSON 9
Support Manual (Rev.2.00)
