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SDMA Register Manual
11.6.3 SDMA Register Description
NOTE:
Some registers have no reset value (marked with -) because of hardware implementation in
memory. Software must ensure the correct programming of these registers, if needed.
The shadow registers are used to read run time registers such as CCEN, CCFN, CDAC, or
CSAC. Typically, when accessed in 8-bit or 16-bit access for two consecutive accesses, the
value of the previous registers may change. This shadow register is used to hold the whole
value to allow the next access to recover the remaining 24 bits or 16 bits.
For non-32-bit transactions, start reading or writing from the LSByte first to enable the
register update. There is no issue for 32-bit read-write transactions.
Table 11-16. DMA4_REVISION
Address Offset
0x0000 0000
Physical Address
0x4805 6000
Instance
SDMA
Description
This register contains the DMA revision code
Type
R
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
9
8
7
6
5
4
3
2
1
0
RESERVED
REV
Bits
Field Name
Description
Type
Reset
31:8
RESERVED
Reserved. Write 0s for future compatibility. Read returns
RW
0x000000
0.
7:0
REV
[7:4] DMA4 major revision code
R
TI internal data
[3:0] DMA4 minor revision code
Table 11-17. Register Call Summary for Register DMA4_REVISION
SDMA Register Manual
•
:
Table 11-18. DMA4_IRQSTATUS_Lj
Address Offset
0x0000 0008 + (j * 0x4)
Index
j = 0 to 3
Physical Address
0x4805 6008 + (j * 0x4)
Instance
SDMA
Description
The interrupt status register regroups all the status of the DMA4 channels that can generate an interrupt
over line Lj.
Type
RW
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
9
8
7
6
5
4
3
2
1
0
CH_31_0_Lj
Bits
Field Name
Description
Type
Reset
31:0
CH_31_0_Lj
Channel 31 Interrupt on Lj: When an interrupt is seen on
RW
0x00000000
the line Lj the status of a interrupting channel i is read in
the bit field i.
Read 0x0: Channel Interrupt Lj false
Write 0x0: Channel Interrupt Lj status bit unchanged
Read 0x1: Channel Interrupt Lj true (pending)
Write 0x1: Channel Interrupt Lj status bit is reset
2375
SWPU177N – December 2009 – Revised November 2010
SDMA
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