at32uc3b0512-z2ues ATMEL Corporation, at32uc3b0512-z2ues Datasheet - Page 378

• Manufacturer Part Number: at32uc3b0512-z2ues
• Description: 32-bit Avr Microcontroller
• Manufacturer: ATMEL Corporation

22.7.1.7
32059J–12/2010
Pad Suspend
• When the user write a one to the ALLOC bit, the Configuration OK Status bit in the Endpoint n
Figure 22-9 on page 378
Figure 22-9. Pad Behavior
• In the Idle state, the pad is put in low power consumption mode, i.e., the differential receiver of
• In the Active state, the pad is working.
Figure 22-10 on page 378
Figure 22-10. Pad Events
as far as nothing has been written or received into them while changing the allocation state of
the first pipe/endpoint.
Status register (UESTAn.CFGOK) is set only if the configured size and number of banks are
correct compared to their maximal allowed values for the endpoint and to the maximal FIFO
size (i.e. the DPRAM size), so the value of CFGOK does not consider memory allocation
conflicts.
the USB pad is off, and internal pull-down with strong value(15K) are set in both DP/DM to
avoid floating lines.
SUSP
WAKEUP
PAD State
shows the pad behavior.
illustrates the pad events leading to a PAD state change.
Suspend detected
Active
Idle
| DETACH = 1
| Suspend
USBE = 0
Wake-up detected
Idle
& DETACH = 0
& Suspend
USBE = 1
Cleared on wake-up
Active
Cleared by software to acknowledge the interrupt
Active
AT32UC3B
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