
156
SAM7S Series [DATASHEET]
6175M–ATARM–26-Oct-12
22.4.5
PDC Receive Next Pointer Register
Register Name:
PERIPH_RNPR
Access Type:
Read-write
RXNPTR: Receive Next Pointer Address
RXNPTR is the address of the next buffer to fill with received data when the current buffer is full.
22.4.6
PDC Receive Next Counter Register
Register Name:
PERIPH_RNCR
Access Type:
Read-write
RXNCR: Receive Next Counter Value
RXNCR is the size of the next buffer to receive.
31
30
29
28
27
26
25
24
RXNPTR
23
22
21
20
19
18
17
16
RXNPTR
15
14
13
12
11
10
9
8
RXNPTR
76
543210
RXNPTR
31
30
29
28
27
26
25
24
--
23
22
21
20
19
18
17
16
--
15
14
13
12
11
10
9
8
RXNCR
76
543210
RXNCR