ATPL230A datasheet(33/122 Pages) ATMEL

Part #	ATPL230A

Description	ATPL Series Power Line Communications Device

PDF	122 Pages

Scroll/Zoom	100%

Manufacturer	ATMEL [ATMEL Corporation]

Direct Link	http://www.atmel.com

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33 / 122 page

ATPL230A [DATASHEET]

Atmel-43053J-ATPL230A-Datasheet_22-Sep-16

8.3.1.7 CRC PRIMEPLUS Polynomial Register

Name:

PRIMEPLUS_CRC_POLY

Address:

0xFEF5 (MSB) – 0xFEF6 (LSB)

Access:

Read/Write

Reset:

0x080F

This register allows the PRIME v1.4 mode physical CRC polynomial configuration. Each bit of the register represents

a grade coefficient selected by its position into the register. For example the reset value 0x080F corresponds to the

polynomial X^12 + X^11 + X^3 + X^2 + X + 1. In this polynomial the active coefficients are 12, 11, 3, 2, 1, 0. The most

significant coefficient (12) represents the polynomial grade and is implemented by the algorithm feedback so it is not

included in the register. With the other coefficients we calculate the register value needed as follows: 2^11 + 2^3 + 2^2

+ 2^1 + 2^0 = 2063 = 0x080F.

PRIMEPLUS_CRC_POLY (15:8)

76543210

PRIMEPLUS_CRC_POLY (7:0)

ATPL230A Datasheet(PDF) 33 Page - ATMEL Corporation