nRF24LE1 Nordic VLSI, nRF24LE1 Datasheet - Page 65

• Manufacturer Part Number: nRF24LE1
• Manufacturer: Nordic VLSI

nRF24LE1 Preliminary Product Specification
5.2.6
The Data Pointer Register 1 can be accessed through DPL1 and DPH1. The actual data pointer is selected
by DPS register.
These registers are intended to hold 16-bit address in the indirect addressing mode used by MOVX (move
external memory), MOVC (move program memory) or JMP (computed branch) instructions. They may be
manipulated as 16-bit register or as two separate 8-bit registers. DPH1 holds higher byte and DPL1 holds
lower byte of indirect address.
It is generally used to access external code or data space (for example, MOVC A,@A+DPTR or MOV
A,@DPTR respectively).
The Data Pointer 1 is an extension to the standard 8051 architecture to speed up block data transfers.
5.2.7
The MCU contains two Data Pointer registers. Both of them can be used as 16-bits address source for indi-
rect addressing. The DPS register serves for selecting active data pointer register.
5.2.8
The PCON register is used to control the Program Memory Write Mode and Serial Port 0 baud rate doubler.
Revision 1.1
Address Bit Name
Address Bit Name
Address
0x92
0x87
0x84
0x85
Data Pointer Select Register – DPS
Data Pointer 1 – DPH1, DPL1
PCON register
7:1
0
7
6
5
4
3
2
1
0
smod Serial port 0 baud rate select, see table 105
pmw Program memory write mode. Setting this bit enables the program mem-
dps
gf3
gf2
gf1
gfo
-
-
-
General purpose flag 3
General purpose flag 2
ory write mode.
General purpose flag 1
General purpose flag 0
Not used. This bit must always be cleared. Always read as 0.
Not used. This bit must always be cleared. Always read as 0.
Table 25. Data Pointer 1 register (DPH1:DPL1)
Data Pointer Select. 0: select DPH:DPL, 1: select DPH1:DPL1
Table 27. PCON register
Table 26. DPS register
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Register name
DPH1
DPL1
Description
Description
Not used