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NRF51822-CFAB-R Folha de dados(PDF) 23 Page - Nordic Semiconductor

Nome de Peças NRF51822-CFAB-R
Descrição Electrónicos  Multiprotocol Bluetooth® low energy/2.4 GHz RF System on Chip
PDF  130 Pages
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Fabricante Electrônico  NORDIC [Nordic Semiconductor]
Página de início  https://www.nordicsemi.com/
Logo NORDIC - Nordic Semiconductor

NRF51822-CFAB-R Folha de dados(HTML) 23 Page - Nordic Semiconductor

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Page 23
nRF51822 Product Specification v3.3
Table 6 and Table 7 shows how memory allocated to different functions can be distributed between RAM
sections for parallel access. There is a table for chip variants with 16 kB or 32 kB RAM.
Table 6 16 kB RAM variants
Table 7 32 kB RAM variants
3.3
Memory Protection Unit (MPU)
The memory protection unit can be configured to protect all flash memory on the device from readback, or
to protect blocks of flash from over-write or erase.
Table 8 MPU flash blocks
RAM
Blocks/Sections
Radio
buffers
Crypto
buffers
SPIS
buffers
CPU
Stack/Heap
CODE
Global
variables
Block0
RAM0
x
x
x
RAM1
x
x
Block1
RAM2
x
x
RAM3
x
x
x
RAM
Blocks/Sections
Radio
buffers
Crypto
buffers
SPIS
buffers
CPU
Stack/Heap
CODE
Global
variables
Block0
RAM0
x
(x)
x
RAM1
(x)
x
x
Block1
RAM2
x
x
RAM3
x
x
Block2
RAM4
x
x
RAM5
x
x
Block3
RAM6
x
x
RAM7
x
x
x
Chip variant
Flash block size
Number of protectable Flash blocks
nRF51822-QFAA
nRF51822-CEAA
nRF51822-CTAA
4 kB
64
nRF51822-QFAB
nRF51822-CDAB
4 kB
32
nRF51822-QFAC
nRF51822-CFAC
nRF51822-CTAC
4 kB
64



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