CC2510FX Datasheet, PDF (52/244 Pages) List of Unclassifed Manufacturers – True System-on-Chip with Low Power RF Transceiver and 8051 MCU

11.3 CPU Registers
This section describes the internal registers
found in the CPU.
11.3.1 Data Pointers
The CC2510Fx/CC2511Fx has two data pointers,
DPTR0 and DPTR1, to accelerate the
movement of data blocks to/from memory. The
data pointers are generally used to access
CODE or XDATA space e.g.
MOVC A,@A+DPTR
MOV A,@DPTR.
C2510Fx / CC2511Fx
The data pointer select bit, bit 0 in the Data
Pointer Select register DPS, chooses which
data pointer to use during the execution of an
instruction that uses the data pointer, e.g. in
one of the above instructions.
The data pointers are two bytes wide
consisting of the following SFRs:
• DPTR0 – DPH0:DPL0
• DPTR1 – DPH1:DPL1
DPH0 (0x83) – Data Pointer 0 High Byte
Bit Name
Reset
7:0 DPH0[7:0] 0
R/W Description
R/W Data pointer 0, high byte
DPL0 (0x82) – Data Pointer 0 Low Byte
Bit Name
Reset
7:0 DPL0[7:0] 0
R/W Description
R/W Data pointer 0, low byte
DPH1 (0x85) – Data Pointer 1 High Byte
Bit Name
Reset
7:0 DPH1[7:0] 0
R/W Description
R/W Data pointer 1, high byte
DPL1 (0x84) – Data Pointer 1 Low Byte
Bit Name
Reset
7:0 DPL1[7:0] 0
R/W Description
R/W Data pointer 1, low byte
DPS (0x92) – Data Pointer Select
Bit Name
7:1
0
DPS
Reset
0
0
R/W Description
R/W Not used
R/W Data pointer select
0 DPTR0
1 DPTR1
11.3.2 Registers R0 - R7
The CC2510Fx/CC2511Fx provides four register
banks of eight registers each. These register
banks are in the DATA memory space at
addresses 0x00-0x07, 0x08-0x0F, 0x10-0x17
and 0x18-0x1F and are mapped to address
range 0xFF00 to 0xFF1F in the unified
memory space. Each register bank contains
the eight 8-bit register R0 - R7. The register
bank to be used is selected through the
Program Status Word PSW.RS[1:0].
11.3.3 Program Status Word
The Program Status Word (PSW) contains
several bits that show the current state of the
CPU. The Program Status Word is accessible
as an SFR and it is bit-addressable. The PSW
register contains the Carry flag, Auxiliary Carry
SWRS055D
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