Addressing With DAGs
5-8
ADSP-BF535 Blackfin Processor Hardware Reference
• If M is negative:
• I
new
= I
old
+ M
if I
old
+ M
buffer base (start of buffer)
• I
new
= I
old
+ M + L
if I
old
+ M < buffer base (start of buffer)
Figure 5-2. Circular Data Buffers
0
X
0
0
X
1
0
X
2
0
X
3
0
X
4
0
X
5
0
X
6
0
X
7
0
X
8
0
X
9
0
X
A
1
2
3
0
X
0
0
X
1
0
X
2
0
X
3
0
X
4
0
X
5
0
X
6
0
X
7
0
X
8
0
X
9
0
X
A
4
5
6
0
X
0
0
X
1
0
X
2
0
X
3
0
X
4
0
X
5
0
X
6
0
X
7
0
X
8
0
X
9
0
X
A
7
8
9
0
X
0
0
X
1
0
X
2
0
X
3
0
X
4
0
X
5
0
X
6
0
X
7
0
X
8
0
X
9
0
X
A
10
11
LENGTH = 11
BASE ADDRESS = 0
X
0
MODIFIER = 4
The columns above show the sequence in order of locations accessed in one pass.
The sequence repeats on subsequent passes.
Summary of Contents for ADSP-BF535 Blackfin
Page 80: ...Development Tools 1 26 ADSP BF535 Blackfin Processor Hardware Reference...
Page 312: ...Working With Memory 6 86 ADSP BF535 Blackfin Processor Hardware Reference...
Page 332: ...System Interfaces 7 20 ADSP BF535 Blackfin Processor Hardware Reference...
Page 360: ...Dynamic Power Management Controller 8 28 ADSP BF535 Blackfin Processor Hardware Reference...
Page 446: ...Beginning and Ending an SPI Transfer 10 40 ADSP BF535 Blackfin Processor Hardware Reference...
Page 522: ...Timing Examples 11 76 ADSP BF535 Blackfin Processor Hardware Reference...
Page 562: ...IrDA Support 12 40 ADSP BF535 Blackfin Processor Hardware Reference...
Page 608: ...PCI I O Issues 13 46 ADSP BF535 Blackfin Processor Hardware Reference...
Page 672: ...References 14 64 ADSP BF535 Blackfin Processor Hardware Reference...
Page 810: ...SDRAM Controller SDC 18 86 ADSP BF535 Blackfin Processor Hardware Reference...
Page 811: ...ADSP BF535 Blackfin Processor Hardware Reference 18 87 External Bus Interface Unit...
Page 812: ...SDRAM Controller SDC 18 88 ADSP BF535 Blackfin Processor Hardware Reference...
Page 860: ...DMA Bus Debug Registers 20 30 ADSP BF535 Blackfin Processor Hardware Reference...
