Atmel ARM-Based Evaluation Kit for SAM4S16C, 32-Bit ARM® Cortex® Microcontroller ATSAM4S-WPIR-RD ATSAM4S-WPIR-RD Data Sheet

496

SAM4S Series [DATASHEET]

Atmel-11100G-ATARM-SAM4S-Datasheet_27-May-14

PERIPH_PTCR

Write-only

0: No effect.
1: Enables PDC receiver channel requests if RXTDIS is not set.
When a half-duplex peripheral is connected to the PDC, enabling the receiver channel requests automatically disables the 

transmitter channel requests. It is forbidden to set both TXTEN and RXTEN for a half-duplex peripheral.

0: No effect.
1: Disables the PDC receiver channel requests.
When a half-duplex peripheral is connected to the PDC, disabling the receiver channel requests also disables the transmit-

ter channel requests.

0: No effect.
1: Enables the PDC transmitter channel requests.
When a half-duplex peripheral is connected to the PDC, it enables the transmitter channel requests only if RXTEN is not 

set. It is forbidden to set both TXTEN and RXTEN for a half-duplex peripheral.

0: No effect.
1: Disables the PDC transmitter channel requests.
When a half-duplex peripheral is connected to the PDC, disabling the transmitter channel requests disables the receiver 

channel requests.

31

30

29

28

27

26

25

24

–

–

–

–

–

–

–

–

23

22

21

20

19

18

17

16

–

–

–

–

–

–

–

–

15

14

13

12

11

10

9

8

–

–

–

–

–

–

TXTDIS

TXTEN

7

6

5

4

3

2

1

0

–

–

–

–

–

–

RXTDIS

RXTEN