CC2510FX Datasheet, PDF (39/253 Pages) List of Unclassifed Manufacturers – True System-on-Chip with Low Power RF Transceiver and 8051 MCU

CC2510Fx / CC2511Fx
Bit Name
0 DPS
Reset R/W
0
R/W
Description
Data pointer select. Selects active data pointer.
0 DPTR0
1 DPTR1
12.3.4 XDATA Memory Access
The CC2510Fx/CC2511Fx provides an additional
SFR register MPAGE. This register is used
during instructions MOVX A,@Ri and MOVX
@Ri,A MPAGE gives the 8 most significant
address bits, while the register Ri gives the 8
least significant bits.
In some 8051 implementations, this type of
XDATA access is performed using P2 to give
the most significant address bits. Existing
software may therefore have to be adapted to
make use of MPAGE instead of P2.
MPAGE (0x93)– Memory Page Select
Bit Name
7:0 MPAGE[7:0]
Reset R/W
0x00 R/W
Description
Memory page, high-order bits of address in MOVX
instruction
12.4 SFR Registers
The Special Function Registers (SFRs) control
several of the features of the 8051 CPU core
and/or peripherals. Many of the 8051 core
SFRs are identical to the standard 8051 SFRs.
However, there are additional SFRs that
control features that are not available in the
standard 8051. The additional SFRs are used
to interface with the peripheral units and RF
transceiver.
Table 29 shows the address to all SFRs in
CC2510Fx/CC2511Fx. The 8051 internal SFRs
are shown with grey background, while the the
other SFRs are specific to CC2510Fx/CC2511Fx .
Note: all internal SFRs (shown with grey
background in Table 29), can only be
accessed through SFR space as these
registers are not mapped into XDATA space.
Table 30 lists the additional SFRs that are not
standard 8051 peripheral SFRs or CPU-
internal SFRs. The additional SFRs are
described in the relevant sections for each
peripheral function.
CC2510Fx/CC2511Fx PRELIMINARY Data Sheet (Rev. 1.2) SWRS055A Page 39 of 252