AT91CAP7S450A_1 Datasheet, PDF (195/517 Pages) ATMEL Corporation – Customizable Microcontroller

AT91CAP7S450A [Preliminary]
23.4.7 Transmit Next Pointer Register
Register Name:
PERIPH_TNPR
Access Type:
Read/Write
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
7
6
5
4
3
2
1
0
TXNPTR
• TXNPTR: Transmit Next Pointer
TXNPTR contains next transmit buffer address.
When a half duplex peripheral is connected to the PDC, RXNPTR = TXNPTR.
23.4.8 Transmit Next Counter Register
Register Name:
PERIPH_TNCR
Access Type:
Read/Write
31
30
29
28
27
26
25
24
–
–
–
–
–
–
–
–
23
22
21
20
19
18
17
16
–
–
–
–
–
–
–
–
15
14
13
12
11
10
9
8
TXNCTR
7
6
5
4
3
2
1
0
TXNCTR
• TXNCTR: Transmit Counter Next
TXNCTR contains next transmit buffer size.
When a half duplex peripheral is connected to the PDC, RXNCTR = TXNCTR.
5119D–CAP–05/09
195