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NRF51822-CFAC-R7 Datasheet(PDF) 21 Page - Nordic Semiconductor

Part # NRF51822-CFAC-R7
Description  Multiprotocol Bluetooth® low energy/2.4 GHz RF System on Chip
PDF  130 Pages
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Manufacturer  NORDIC [Nordic Semiconductor]
Direct Link  https://www.nordicsemi.com/
Logo NORDIC - Nordic Semiconductor

NRF51822-CFAC-R7 Datasheet(HTML) 21 Page - Nordic Semiconductor

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Page 21
nRF51822 Product Specification v3.3
3.2
Memory
All memory and registers are found in the same address space as shown in the Device Memory Map, see
Figure 5. Devices in the nRF51 Series use flash based memory in the code, FICR, and UICR regions.
The RAM region is SRAM.
Figure 5 Memory Map
The embedded flash memory for program and static data can be programmed using In Application
Programming (IAP) routines from RAM through the SWD interface, or in-system from a program executing
from code area. The Non-Volatile Memory Controller (NVMC) is used for program/erase operations. Regions
of flash memory can be protected from read, write, and erase by the Memory Protection Unit (MPU). A User
Information Configuration Register (UICR) contains the lock byte for enabling readback protection to secure
the IP, while individual block protection is controlled using registers which can only be cleared on chip reset.
reserved
0xFFFFFFFF
Private Peripheral Bus
0xE0100000
reserved
AHB peripherals
0xE0000000
0x50000000
APB peripherals
reserved
RAM
0x40000000
0x20000000
reserved
FICR
reserved
reserved
Code
0x00000000
0x10000000
0x40080000
UICR
reserved
0x10001000



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