CC1110-RTR1 datasheet(124/203 Pages) TI

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CC1110

CC1110 PRELIMINARY Datasheet (Rev. 1.01) SWRS033A

Page 124 of 202

CRC calculations start. Commonly used

seed values are 0x0000 or 0xFFFF.

13.8.3 Registers

The random number generator registers

are

described

this

section.

RNDL (0xBC) – Random Number Generator Data Low Byte

Bit

Name

Reset

R/W

Description

[7:0]

RNDL[7:0]

0xFF

R/W

Random value/seed or CRC result, low byte

When used for random number generation writing this register

twice will seed the random number generator. Writing to this

replaces the 8 LSBs with the data value written.

The value returned when reading from this register is the 8 LSBs

of the LSFR.

When used for random number generation, reading this register

returns the 8 LSBs of the random number. When used for CRC

calculations, reading this register returns the 8 LSBs of the CRC

result.

RNDH (0xBD) – Random Number Generator Data High Byte

Bit

Name

Reset

R/W

Description

[7:0]

RNDH[7:0]

0xFF

R/W

Random value or CRC result/input data, high byte

When written, a CRC16 calculation will be triggered, and the data

value written is processed starting with the MSB bit.

The value returned when reading from this register is the 8 MSBs

of the LSFR.

When used for random number generation, reading this register

returns the 8 MSBs of the random number. When used for CRC

calculations, reading this register returns the 8 MSBs of the CRC

result.

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