dsPIC33EVXXXGM00X/10X FAMILY
FIGURE 4-16:
BIT-REVERSED ADDRESSING EXAMPLE
Sequential Address
b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 0
Bit Locations Swapped Left-to-Right
Around Center of Binary Value
b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b1 b2 b3 b4 0
Bit-Reversed Address
Pivot Point
XB = 0x0008 for a 16-Word Bit-Reversed Buffer
TABLE 4-46:
A3
A2
0
0
0
0
0
0
0
0
0
1
0
1
0
1
0
1
1
0
1
0
1
0
1
0
1
1
1
1
1
1
1
1
BIT-REVERSED ADDRESSING SEQUENCE (16-ENTRY)
Normal Address
Bit-Reversed Address
A1
A0
0
0
0
1
1
0
1
1
0
0
0
1
1
0
1
1
0
0
0
1
1
0
1
1
0
0
0
1
1
0
1
1
Decimal
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
A3
A2
A1
A0
0
0
0
0
1
0
0
0
0
1
0
0
1
1
0
0
0
0
1
0
1
0
1
0
0
1
1
0
1
1
1
0
0
0
0
1
1
0
0
1
0
1
0
1
1
1
0
1
0
0
1
1
1
0
1
1
0
1
1
1
1
1
1
1
Decimal
0
8
4
12
2
10
6
14
1
9
5
13
3
11
7
15
DS70005144E-page 78
2013-2016 Microchip Technology Inc.