PXR40RM Datasheet, PDF (888/1434 Pages) Freescale Semiconductor, Inc – PXR40 Microcontroller

Deserial Serial Peripheral Interface (DSPI)
The DSPI_SDR is a 32-bit register. All 32 bits are used in TSB configuration and only the least significant
16 bits are used in all other configurations.
Address: DSPI_BASE + 0xC0
Access: Read Only
0
1
R
2
3
4
5
6
7
8
9
10 11 12 13
14 15
SER_DATA
W
Reset 0 0
0
00 0 0 0
00000
0
00
16 17
R
18
19 20
21
22
23
24
25
26
27
28
29
30
31
SER_DATA
W
Reset 0 0
0
00 0 0 0
00000
0
00
Figure 25-13. DSPI DSI Serialization Data Register (DSPI_SDR)
Table 25-21. DSPI_SDR Field Descriptions
Field
Description
0–31 Serialized Data. The SER_DATA field contains the signal states of the Parallel Input signals.
SER_DATA
25.3.2.12 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.
The DSPI_ASDR is a 32 bits register, the upper 16 bits are only used, when TSB is enabled. For non TSB
configurations only the least 16 significant bits are used.
Address: DSPI_BASE + 0xC4
Access: R/W
0
1
R
W
2
3
4
5
6
7
8
9
10 11 12 13
14 15
ASER_DATA
Reset 0 0
0
00 0 0 0
00000
0
00
16 17
R
W
18
19 20
21
22
23
24
25
26
27
28
29
30
31
ASER_DATA
Reset 0 0
0
00 0 0 0
00000
0
00
Figure 25-14. DSPI DSI Alternate Serialization Data Register (DSPI_ASDR)
25-28
PXR40 Microcontroller Reference Manual, Rev. 1
Freescale Semiconductor