NRF51822-CDAC-R datasheet(23/130 Pages) NORDIC

tên linh kiện	NRF51822-CDAC-R

Giải thích chi tiết về linh kiện	Multiprotocol Bluetooth® low energy/2.4 GHz RF System on Chip

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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

RAM1

Block1

RAM2

RAM3

RAM

Blocks/Sections

Radio

buffers

Crypto

buffers

SPIS

buffers

CPU

Stack/Heap

CODE

Global

variables

Block0

RAM0

(x)

RAM1

(x)

Block1

RAM2

RAM3

Block2

RAM4

RAM5

Block3

RAM6

RAM7

Chip variant

Flash block size

Number of protectable Flash blocks

nRF51822-QFAA

nRF51822-CEAA

nRF51822-CTAA

4 kB

nRF51822-QFAB

nRF51822-CDAB

4 kB

nRF51822-QFAC

nRF51822-CFAC

nRF51822-CTAC

4 kB

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