Atmel ARM-Based Evaluation Kit for SAM4S16C, 32-Bit ARM® Cortex® Microcontroller ATSAM4S-WPIR-RD ATSAM4S-WPIR-RD データシート
製品コード
ATSAM4S-WPIR-RD
496
SAM4S Series [DATASHEET]
Atmel-11100G-ATARM-SAM4S-Datasheet_27-May-14
27.5.9 Transfer Control Register
Name:
PERIPH_PTCR
Access:
Write-only
• RXTEN: Receiver Transfer Enable
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
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.
• RXTDIS: Receiver Transfer Disable
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-
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.
• TXTEN: Transmitter Transfer Enable
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
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.
• TXTDIS: Transmitter Transfer Disable
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
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