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BLUENRG-2 Datasheet(PDF) 148 Page - STMicroelectronics

Part # BLUENRG-2
Description  Bluetooth® low energy wireless system-on-chip
PDF  190 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

BLUENRG-2 Datasheet(HTML) 148 Page - STMicroelectronics

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Functional details
BlueNRG-2
148/190
DocID030675 Rev 2
3.16.3
RNG registers
RNG peripheral base address (RNG_BASE_ADDR) 0xB0000000
Table 200: RNG registers
Address
offset
Name
RW
Reset
Description
0x00
CR
RW
0x00000000
RNG configuration register. Refer to the detailed
description below.
0x04
SR
R
0x00000000
RNG status register. Refer to the detailed description
below.
0x08
VAL
R
0x00000000
RNG 16-bit random value. Refer to the detailed
description below.
Table 201: RNG
– CR register description: address offset RNG_BASE_ADDR+0x00
Bit
Field name
Reset
RW
Description
1:0
RESERVED
0x0
RW
RESERVED
2
DIS
0x0
RW
Set the state of the random number generator.
0: RNG is enable.
1: RNG is disabled. The internal free-running
oscillators are put in power-down mode and
the RNG clock is stopped at the input of the
block.
31:3
RESERVED
0x00000000
RW
RESERVED
Table 202: RNG
– SR register description: address offset RNG_BASE_ADDR+0x04
Bit
Field name
Reset
RW
Description
0
RDY
0x0
R
New random value ready.
0: The VAL register value is not yet valid. If
performing a read access to VAL, the host will
be put on hold until a random value is
available.
1: The VAL register contains a valid random
number.
This bit remains at 0 when the RNG is disabled (RNGDIS
bit = 1b in CR)
31:1
RESERVED
0x00000000
R
RESERVED
Table 203: RNG
– VAL register description: address offset RNG_BASE_ADDR+0x08
Bit
Field name
Reset
RW
Description
15:0
RANDOM_VALUE
0x0000
R
The 16-bit random value.
31:16
RESERVED
0x0000
R
RESERVED



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