at43312 ATMEL Corporation, at43312 Datasheet - Page 15

• Manufacturer Part Number: at43312
• Description: Self- And Bus- Powered Usb Hub Controller
• Manufacturer: ATMEL Corporation

Port Status Field, wPortStatus
Port Change Field, wPortChange
10-15
5-15
5-7
Bit
Bit
0
1
2
3
4
8
9
0
1
2
3
4
Description
Current Connect Status: PORT_CONNECTION
0 = no device present on this port
1 = a device is present on this port
Port Enabled/Disabled: PORT_ENABLE
0 = Port is disabled
1 = Port is enabled
Suspend: PORT_SUSPEND
0 = Not suspended
1 = Suspended
Over-Current Indicator: PORT_OVER_CURRENT
0 = Power operation normal for this port
1 = Over-current condition exists for this port. Power to this port has been shut off
Reset: PORT_RESET
0 = Reset signalling not asserted
1 = Reset signalling asserted
Reserved. Always read as 0’s.
Port Power: PORT_POWER
0 = This port is powered OFF
1 = This port is powered ON
Low Speed Device Attached: PORT_LOW_SPEED
0 = Full Speed device attached to this port
1 = Low Speed device attached to this port
Reserved. Always read as 0’s
Description
Connect Status Change: C_PORT_CONNECTION
0 = No change has occurred on Current Connect status
1 = Current Connect Status has changed
Port Enable/Disable Change: C_PORT_ENABLE
0 = No change has occurred on Port Enabled/Disabled status
1 = Port Enabled/Disabled status has changed
Suspend Change: C_PORT_SUSPEND
0 = No change
1 = Resume complete
Over-Current Indicator Change: C_PORT_OVER_CURRENT
0 = No change has occurred on Over-Current indicator
1 = Over-Current indicator has changed
Reset Change: C_PORT_RESET
0 = No change
1 = Reset complete
Reserved. Always read as 0’s.
15