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NRF9160-SICA-R7 Datasheet(PDF) 264 Page - Nordic Semiconductor

Part # NRF9160-SICA-R7
Description  nRF9160 Product Specification
PDF  400 Pages
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Manufacturer  NORDIC [Nordic Semiconductor]
Direct Link  https://www.nordicsemi.com/
Logo NORDIC - Nordic Semiconductor

NRF9160-SICA-R7 Datasheet(HTML) 264 Page - Nordic Semiconductor

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Peripherals
RAMREGION[0].PERM
RAMREGION[N-1].PERM
Access
control
0
0
1
Access error
Error reporting
Address and control signals
+
Master identification
Events
Bus error
RAMREGION[n].PERM
SPU registers
Entire
RAM
System bus
Data bus
(read)
Region #1
Region #0
Region #n
Region #N-2
Region #N-1
Region
size
Data bus
(write)
Figure 83: Definition of the N=32 regions, each of 8 KiB, in the RAM memory space
6.15.3.1 Non-secure callable (NSC) region definition in RAM
The SPU provides support for the definition of non-secure callable (NSC) sub-regions to allow non-secure
to secure function calls.
A non-secure callable sub-region can only exist within an existing secure region and its definition is done
using two registers:
• RAMNSC[n].REGION, used to select the secure region that will contain the NSC sub-region
• RAMNSC[n].SIZE, used to define the size of the NSC sub-region within the secure region
The NSC sub-region will be defined from the highest address in that region, going downwards. Figure
below illustrates the NSC sub-regions and the registers used for their definition:
4418_1315 v2.0
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