Atmel ARM-Based Evaluation Kit for SAM4S16C, 32-Bit ARM® Cortex® Microcontroller ATSAM4S-WPIR-RD ATSAM4S-WPIR-RD Data Sheet
Product codes
ATSAM4S-WPIR-RD
SAM4S Series [DATASHEET]
Atmel-11100G-ATARM-SAM4S-Datasheet_27-May-14
490
27.5.3 Transmit Pointer Register
Name:
PERIPH_TPR
Access:
Read/Write
• TXPTR: Transmit Counter Register
TXPTR must be set to transmit buffer address.
When a half-duplex peripheral is connected to the PDC, RXPTR = TXPTR.
When a half-duplex peripheral is connected to the PDC, RXPTR = TXPTR.
31
30
29
28
27
26
25
24
TXPTR
23
22
21
20
19
18
17
16
TXPTR
15
14
13
12
11
10
9
8
TXPTR
7
6
5
4
3
2
1
0
TXPTR