Data pointer high register 2 (dph2), Data pointer low register 3 (dpl3), Data pointer high register 3 (dph3) – Maxim Integrated High-Speed Microcontroller Users Guide: Network Microcontroller Supplement User Manual
Page 90: Data pointer select register 1 (dps1)
High-Speed Microcontroller User’s
Guide: Network Microcontroller
Supplement
90
7
6
5
4
3
2
1
0
SFR F5h
DPH3.7
DPH3.6
DPH3.5
DPH3.4
DPH3.3
DPH3.2
DPH3.1
DPH3.0
RW-0
RW-0
RW-0
RW-0
RW-0
RW-0
RW-0
RW-0
7
6
5
4
3
2
1
0
SFR F6h
ID3
ID2
—
—
—
—
—
—
RW-0
RW-0
R-1
R-1
R-1
R-1
R-1
R-1
7
6
5
4
3
2
1
0
SFR F4h
DPL3.7
DPL3.6
DPL3.5
DPL3.4
DPL3.3
DPL3.2
DPL3.1
DPL3.0
RW-0
RW-0
RW-0
RW-0
RW-0
RW-0
RW-0
RW-0
7
6
5
4
3
2
1
0
SFR F3h
DPH2.7
DPH2.6
DPH2.5
DPH2.4
DPH2.3
DPH2.2
DPH2.1
DPH2.0
RW-0
RW-0
RW-0
RW-0
RW-0
RW-0
RW-0
RW-0
Data Pointer High Register 2 (DPH2)
R = Unrestricted read, W = Unrestricted write, -n = Value after reset
Data Pointer Low Register 3 (DPL3)
R = Unrestricted read, W = Unrestricted write, -n = Value after reset
Data Pointer High Register 3 (DPH3)
R = Unrestricted read, W = Unrestricted write, -n = Value after reset
Data Pointer Select Register 1 (DPS1)
R = Unrestricted read, W = Unrestricted write, -n = Value after reset
DPH2.7–0
Bits 7–0
Data pointer high byte 2. This register is the high byte of auxiliary data pointer 2 and contains the mid-
dle-order byte of the 24-bit data address.
DPL3.7–0
Bits 7–0
Data pointer low byte 3. This register is the low byte of the auxiliary data pointer 3 and contains the
low-order byte of the 24-bit data address.
DPH3.7–0
Bits 7–0
Data pointer high byte 3. This register is the high byte of auxiliary data pointer 3 and contains the mid-
dle-order byte of the 24-bit data address.
ID3
Bit 7
ID2
Bit 6
Bits 5–0
Increment/decrement data pointer 3. This bit defines how the INC DPTR instruction functions in rela-
tion to data pointer 3 when it is selected by SEL1 and SEL bits (SEL1, SEL = 11). When ID3 is set to
logic 1, the INC DPTR instruction actually decrements the content of data pointer 3 by 1. When ID3 is
cleared to 0, the INC DPTR instruction increments the content of data pointer 3 by 1.
Increment/decrement data pointer 2. This bit defines how the INC DPTR instruction functions in rela-
tion to data pointer 2 when it is selected by SEL1 and SEL bits (SEL1, SEL = 10). When ID2 is set to
logic 1, the INC DPTR instruction actually decrements the content of data pointer 2 by 1. When ID2 is
cleared to 0, the INC DPTR instruction increments the content of data pointer 2 by 1.
Reserved. (Read returns all one’s.)
Maxim Integrated