Atmel Evaluation Kit AT91SAM9M10-G45-EK AT91SAM9M10-G45-EK 数据表
产品代码
AT91SAM9M10-G45-EK
381
SAM9M10 [DATASHEET]
6355F–ATARM–12-Mar-13
27.8.3
SPI Receive Data Register
Name:
SPI_RDR
Addresses:
0xFFFA4008 (0), 0xFFFA8008 (1)
Access:
Read-only
• RD: Receive Data
Data received by the SPI Interface is stored in this register right-justified. Unused bits read zero.
• PCS: Peripheral Chip Select
In Master Mode only, these bits indicate the value on the NPCS pins at the end of a transfer. Otherwise, these bits read
zero.
zero.
31
30
29
28
27
26
25
24
–
–
–
–
–
–
–
–
23
22
21
20
19
18
17
16
–
–
–
–
PCS
15
14
13
12
11
10
9
8
RD
7
6
5
4
3
2
1
0
RD