HCS361 datasheet(28/42 Pages) MICROCHIP

部件名	HCS361

功能描述	KEELOQ짰 Code Hopping Encoder incorporates high security,

PDF	42 Pages

Scroll/Zoom	100%

制造商	MICROCHIP [Microchip Technology]

网页	http://www.microchip.com

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28 / 42 page

HCS361

DS40146F-page 28

FIGURE 9-5:

VPWM FORMAT SUMMARY (MOD = 1)

FIGURE 9-6:

VPWM WAKE-UP FORMAT (MOD=1)

FIGURE 9-7:

VPWM PREAMBLE/HEADER FORMAT (MOD=1)

FIGURE 9-8:

VPWM DATA WORD FORMAT (MOD=1)

WAKE-UP (TXWAK=1)

Preamble Sync Encrypt Fixed

Guard

Dead Time

1st CODE WORD

Preamble Sync Encrypt

33% Duty Cycle Wake-Up sequence 250xTE

TBP

Dead Time 258xTE

Code Word

Guard

Time

SPM=1

SPM=0

18xTE Preamble

10xTE Header

Encrypted Portion

Fixed Code Portion

TBP

10xTE Sync

Pulse

10 1

28 29 30 31

32 33

56 57

60 61

64 65

Encrypted Data

Serial Number

Function Code

VLOW

CRC

Note:

The bit values are only shown as an example.

Bit

TBP

LOGIC 0

LOGIC 1

on Transition Low to High

TBP

LOGIC 0

TBP

LOGIC 1

on Transition High to Low

2XTE

TBP

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