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4.2
USB History Data
Table 4-2 shows the USB-related history data.
History data
USB: VBUS overcurrent
USB: LS device
USB: FS device
USB: HS device
USB: storage device
USB: unsupported device
USB: more than 3 storage device
USB: more than 4 hubs
USB: phase err
USB: CBW
USB: Data IN
USB: Data OUT
USB: CSW
USB: cleared STALL
USB: Mass Storage 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
Support Manual (Rev.2.00)
Table 4-2 USB history data list
Detected VBUS overcurrent.
Detected LS device connection.
Detected FS device connection.
Detected HS device connection.
Detected storage device connection.
Detected unsupported device connection.
Detected connection of 3 or more storage devices.
Detected connection of 4 or more USB hubs.
Detected phase error.
Issued CBW.
Issued Bulk IN (except CSW).
Issued Bulk OUT (except CBW).
Received CSW.
Issued request to clear STALL.
Issued Mass Storage Reset (specified device reset).
EPSON
4. History Data Details
Summary
9
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