ARM Cortex-M4(F) Version used in nRF52?

[abc]

I'm not sure how often the Cortex-M4(F) design from ARM is updated, but what is version used in Nordic nRF52810/52832 devices?  I want to know what ARM documentation version I should be looking at for the generic user guide/technical reference manual.  See http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.subset.cortexm.m4/index.html

Sorry if this information is posted in Nordic datasheet/infocenter, but I didn't see it beyond a generic "reference ARM Cortex user guide".

Thanks

[Amanda Hsieh]

Hi, 

what is version used in Nordic nRF52810/52832 devices?

It is Cortex-M4 r0p1. You will see the information when the J-Link Commander starting and connecting to the device like this. 

-Amanda H.

[abc]

Okay, thank you Amanda.  So is there not any documentation of this value elsewhere (e.g. infocenter table, FICR reg, nRF SDK)?  Not that I am expecting it to change a lot, just wondering for future reference.

[Amanda Hsieh]

If you use the J-Link tool to connect the board, it can read the CPUID reg as:

Connecting to target via SWD
Found SW-DP with ID 0x2BA01477
Found SW-DP with ID 0x2BA01477
Scanning AP map to find all available APs
AP[2]: Stopped AP scan as end of AP map has been reached
AP[0]: AHB-AP (IDR: 0x24770011)
AP[1]: JTAG-AP (IDR: 0x02880000)
Iterating through AP map to find AHB-AP to use
AP[0]: Core found
AP[0]: AHB-AP ROM base: 0xE00FF000
CPUID register: 0x410FC241. Implementer code: 0x41 (ARM)
Found Cortex-M4 r0p1, Little endian.
FPUnit: 6 code (BP) slots and 2 literal slots
CoreSight components:
ROMTbl[0] @ E00FF000
ROMTbl[0][0]: E000E000, CID: B105E00D, PID: 000BB00C SCS-M7
ROMTbl[0][1]: E0001000, CID: B105E00D, PID: 003BB002 DWT
ROMTbl[0][2]: E0002000, CID: B105E00D, PID: 002BB003 FPB
ROMTbl[0][3]: E0000000, CID: B105E00D, PID: 003BB001 ITM
ROMTbl[0][4]: E0040000, CID: B105900D, PID: 000BB9A1 TPIU
ROMTbl[0][5]: E0041000, CID: B105900D, PID: 000BB925 ETM
Cortex-M4 identified.
J-Link>

-Amanda H.