nrf24le1-f16q48-t ETC-unknow, nrf24le1-f16q48-t Datasheet - Page 73

• Manufacturer Part Number: nrf24le1-f16q48-t
• Description: Ultra-low Power Wireless System On-chip Solution
• Manufacturer: ETC-unknow

nRF24LE1 Preliminary Product Specification
Such a trigger to enable code execution from protected memory might seem cumbersome, but it is made
so to ensure safe code execution during firmware upgrades. Please see
details.
RDISMB - Read DISable Main Block
By changing this byte from 0xFF the SPI and other external interfaces no longer have any access to the
flash main block and only read access to the InfoPage.
The byte is changed by the RDISMB SPI command and since it cuts the SPI access to the flash main
block, must be the last command sent to a nRF24LE1 during flash programming. The only SPI command
that can give SPI access to the flash again is ERASE ALL.
ENDEBUG - Enable HW debug
Changing this byte from 0xFF will enable the on chip HW debug features and the JTAG debug interface.
The on chip HW debug features will change device pin out and needs either a nRFprobe
debug tools to be utilized. Please see section XX for more details on HW debug features.
Revision 1.1
Page
size
0
Note: ERASE ALL will also erase the entire InfoPage. Using ERASE ALL without first reading out
NUPP < 32?
InfoPage
and store InfoPage area DSYS for later write back, will render the device non functional!
Split flash in 2
NUPP < 32
0xFBFF
0x0000
0xFFFF
0xFC00
0xFA00
0x3FFF
Figure 32. Flash main block protected area
Extendend endurance
NV Data Memory
NV Data Memory
Unprotected
Protected
512 Byte
Program
Program
Memory
Memory
1 kByte
73 of 191
16k
Data Space
(XDATA, accessible by MOVX)
Code Space
(accessible by MOVC)
0
chapter 27 on page 180
execution at address
Even number of 1's,
set start program
BootstartSelector
addresses is read during startup
and saved as BootStartSelector
The content of the 16 highest
”0"
start program execution
Odd number of 1's, set
TM
at the bottom of
protected area.
or FS2 HW
for further