ISD94100 Series Technical Reference Manual
Sep 9, 2019
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Note:
When PDMA finish each transfer data, this field will be decrease immediately.
[15]
STRIDEEN
Stride Mode Enable Bit
0 = Stride transfer mode Disabled.
1 = Stride transfer mode Enabled.
[14]
Reserved
Reserved. Any values read should be ignored. When writing to this field always write with
0.
[13:12]
TXWIDTH
Transfer Width Selection
This field is used for transfer width.
00 = One byte (8 bit) is transferred for every operation.
01= One half-word (16 bit) is transferred for every operation.
10 = One word (32-bit) is transferred for every operation.
11 = Reserved. Do not use.
Note:
The PDMA transfer source address (PDMA_DSCT_SA) and PDMA transfer
destination address (PDMA_DSCT_DA) should be alignment under the TXWIDTH
selection
[11:10]
DAINC
Destination Address Increment
This field is used to set the destination address increment size.
11 = No increment (fixed address).
Others = Increment and size is depended on TXWIDTH selection.
[9:8]
SAINC
Source Address Increment
This field is used to set the source address increment size.
11 = No increment (fixed address).
Others = Increment and size is depended on TXWIDTH selection.
[7]
TBINTDIS
Table Interrupt Disable Bit
This field can be used to decide whether to enable table interrupt or not. This bit is only
used for scatter-gather mode. If the TBINTDIS bit is enabled when PDMA controller
finishes transfer task, it will not generates transfer done interrupt.
0 = Table interrupt Enabled.
1 = Table interrupt Disabled.
[6:4]
BURSIZE
Burst Size
This field is used for peripheral to determine the burst size or used for determine the re-
arbitration size.
000 = 128 Transfers.
001 = 64 Transfers.
010 = 32 Transfers.
011 = 16 Transfers.
100 = 8 Transfers.
101 = 4 Transfers.
110 = 2 Transfers.
111 = 1 Transfers.
Note:
This field is only useful in burst transfer type.
[3]
Reserved
Reserved. Any values read should be ignored. When writing to this field always write with
0.
[2]
TXTYPE
Transfer Type
0 = Burst transfer type.
1 = Single transfer type.
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