Data Page Pointer (Dp); Product Shift Modes - Texas Instruments TMS320C28x Reference Manual

CPU Registers
Table 2−3. Product Shift Modes
2.2.4

Data Page Pointer (DP)

2-10
PM Value
000
001
010
011
100
101
110
111
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.
Product Shift Mode
Left shift by 1
2
No shift
2
Right shift by 1
2
Right shift by 2
2
Right shift by 3
2
Right shift by 4
2
(if AMODE = 1, left 4)
Right shift by 5
2
Right shift by 6
2