Deserial Serial Peripheral Interface (DSPI)
MPC5510 Microcontroller Family Reference Manual, Rev. 1
Freescale Semiconductor
23-27
Preliminary
DSPI_SDR is read-only. When the TXSS bit in the DSPI_DSICR is negated, the data in the DSPI_SDR is
the source of the serialized data.
23.3.2.12 DSPI DSI Alternate Serialization Data Register (DSPI_ASDR)
The DSPI_ASDR provides a means for host software to write the data to be serialized. When the TXSS
bit in the DSPI_DSICR is set, the data in the DSPI_ASDR is the source of the serialized data. Writes to
the DSPI_ASDR take effect on the next frame boundary.
Offset: DSP 00C0
Access: Read
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
R
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
W
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
R
SER_DATA [15:0]
W
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Figure 23-12. DSPI DSI Serialization Data Register (DSPI_SDR)
Table 23-12. DSPI_SDR Field Description
Bits
Description
bits 0–15
Reserved.
SER_DATA
[15:0]
Serialized Data. The SER_DATA field contains the signal states of the parallel input signals. SER_DATA
[15:0] maps to DSPI serialization inputs IN[15:0].
Offset: DSP 0x00C4
Access: Read/Write
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
R
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
W
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
R
ASER_DATA [15:0]
W
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Figure 23-13. DSPI DSI Alternate Serialization Data Register (DSPI_ASDR)