Texas Instruments TMS320C28x - Data Page Pointer (DP); Product Shift Modes

CPU Registers
2-10
Table 2−3. Product Shift Modes
PM Value Product Shift Mode
000
2
Left shift by 1
001
2
No shift
010
2
Right shift by 1
011
2
Right shift by 2
100
2
Right shift by 3
101
2
Right shift by 4
(if AMODE = 1, left 4)
110
2
Right shift by 5
111
2
Right shift by 6
2.2.4 Data Page Pointer (DP)
In the direct addressing modes, data memory is addressed in blocks of 64
words called data pages. The lower 4M words of data memory consists of
65536 data pages labeled 0 through 65535, as shown in Figure 2−6. In DP
direct addressing mode, the 16-bit data page pointer (DP) holds the current
data page number. You change the data page by loading the DP with a new
number. For information about the direct addressing modes, see section 5.4
on page 5-8.