AT32UC3C1512C Automotive Atmel Corporation, AT32UC3C1512C Automotive Datasheet - Page 895

• Manufacturer Part Number: AT32UC3C1512C Automotive
• Manufacturer: Atmel Corporation

9166C–AVR-08/11
Table 32-7.
Table 32-8.
Table 32-9.
This field can be cleared by software. To avoid read-modify-write issues, the user should: freeze
the pipe, wait until the UPSTAX.PFREEZE is one, clear the PERSTA field in memory, and then
unfreeze the pipe.
31:24
23:21
ERCNT
• The control and status fields for the pipe and bank (Pn_CTR_STA_BK0/1):
• The control and status 1 of endpoint n (Pn_CTR_STA1):
31:19
-
-
– UNDERF: Underflow status for isochronous/Interrupt IN transfers. This status bit is
– OVERF: Overflow status for isochronous/interrupt OUT transfers. This status bit is
– CRCERR: CRC error status for isochronous IN transfers. See
– PERSTA: Pipe Error Status. See
–
–
– PDADDR: Should be set by the user. Device address for this pipe.
– ERCNT: Pipe Error Counter.
– CRC16ER: Is set if a CRC16 error occurs during an isochronous IN transaction.
– TOUTER: Is set if a Time-out error occurs during a USB transaction.
– PIDER: Is set if a PID error occurs during a USB transaction.
– DAPIDER: Is set if a Data PID error occurs during a USB transaction.
set by hardware at the current bank (where the IN packet should have been stored).
When a new successful transaction occurs this bit is overwritten to zero if
UPSTAX.ERRORFI has previously been cleared by software. See
on page
set by hardware at the current bank (where the OUT packet should have been
loaded). When a new successful transaction occurs this bit is overwritten to zero if
UPSTAX.ERRORFI has previously been cleared by software. See
on page
899.
PERMAX
page
PEPNUM
18
23:16
UNDERF
895) is larger than PERMAX, the UPSTAX.PERRI bit is set.
Status
20
CRC16ER
Pn_CTR_STA_BK0/1 structure
Pn_CTR_STA1 structure
PERSTA structure
: Should be set by the user. If the Pipe Error Counter (see
: Should be set by the user. Endpoint number for this pipe.
899.
899.
PERSTA
Status
17
OVERF
19
TOUTER
16
CRCERR
15:12
PERMAX
18
PIDER
“PERSTA structure”
11:8
15:0
PEPNUM
17
DAPIDER
Control
7
table.
Control
-
16
DTGLER
-
6:0
PDADDR
”CRC error” on page
”Data flow error”
”Data flow error”
Figure 32-9 on
AT32UC3C
895