Datasheet

445
SAM4S [DATASHEET]
11100E–ATARM–24-Jul-13
27.5.7 Transmit Next Pointer Register
Name: PERIPH_TNPR
Access: Read-write
• TXNPTR: Transmit Next Pointer
TXNPTR contains next transmit buffer address.
When a half duplex peripheral is connected to the PDC, RXNPTR = TXNPTR.
31 30 29 28 27 26 25 24
TXNPTR
23 22 21 20 19 18 17 16
TXNPTR
15 14 13 12 11 10 9 8
TXNPTR
76543210
TXNPTR