NXP Semiconductors PXN2020, Reference Manual, Page: 244 / 1376

System Integration Unit (SIU)
PXN20 Microcontroller Reference Manual, Rev. 1
8-62 Freescale Semiconductor
8.3.2.53 Masked Serial GPO Register for DSPI_D Low (SIU_DSPIDL)
The SIU_DSPIDL register allows any combination of bits in the bottom half of the 32-bit serialized data
frame from DSPI_D to be updated with a single 32-bit write operation, while allowing other bits to
maintain their previous state. This is accomplished by writing a 16-bit masked value coherently with an
update value contained in a 16-bit output field, and only updating those bits in the output register for which
the corresponding mask bit is set.
8.3.2.54 eMIOS Select Register for DSPI_A (SIU_EMIOSA)
The SIU_EMIOSA register selects the output serialized source for the DSPI_A channel.
Table 8-39. SIU_DSPIDH Field Descriptions
Field Description
MASKn Mask Bit. This bit controls the write access to the corresponding GPO for DSPI_D.
0 The previous value defined by GPO for DSPI_D is maintained.
1 The corresponding GPO for DSPI_D is written with the value defined by the DATAn field.
DATAn Pin Data Out. This bit stores the data to be driven out on the GPO for DSPI_D output controlled by this register.
0 Logic low value is driven for the corresponding GPO for DSPI_D when this output is selected in the DSPI
serialization module.
1 Logic high value is driven for the corresponding GPO for DSPI_D when this output is selected in the DSPI
serialization module.
Offset: SI 0x0D1C Access: User read/write
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
R MASK
15
MASK
14
MASK
13
MASK
12
MASK
11
MASK
10
MASK
9
MASK
8
MASK
7
MASK
6
MASK
5
MASK
4
MASK
3
MASK
2
MASK
1
MASK
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 DATA
15
DATA
14
DATA
13
DATA
12
DATA
11
DATA
10
DATA
9
DATA
8
DATA
7
DATA
6
DATA
5
DATA
4
DATA
3
DATA
2
DATA
1
DATA
0
W
Reset 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Figure 8-61. Masked Serial GPO Register for DSPI_D Low (SIU_DSPIDL)
Table 8-40. SIU_DSPIDL Field Descriptions
Field Description
MASKn Mask Bit. This bit controls the write access to the corresponding GPO for DSPI_D.
0 The previous value defined by GPO for DSPI_D is maintained.
1 The corresponding GPO for DSPI_D is written with the value defined by the DATAn field.
DATAn Pin Data Out. This bit stores the data to be driven out on the GPO for DSPI_D output controlled by this register.
0 Logic low value is driven for the corresponding GPO for DSPI_D when this output is selected in the DSPI
serialization module.
1 Logic high value is driven for the corresponding GPO for DSPI_D when this output is selected in the DSPI
serialization module.