HCS361 datasheet(27/42 Pages) MICROCHIP

Part #	HCS361

Description	KEELOQ짰 Code Hopping Encoder incorporates high security,

PDF	42 Pages

Scroll/Zoom	100%

Manufacturer	MICROCHIP [Microchip Technology]

Direct Link	http://www.microchip.com

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27 / 42 page

DS40146F-page 27

HCS361

FIGURE 9-2:

PWM FORMAT SUMMARY (MOD = 0)

FIGURE 9-3:

PWM PREAMBLE/HEADER FORMAT (MOD=0)

FIGURE 9-4:

PWM DATA FORMAT (MOD=0)

TBP

Code Word

Guard

Time

Duty Cycle: 1/6-2/6

SPM=1

SPM=0

18xTE Preamble

10xTE Header

Encrypted Portion

Fixed Code Portion

TBP

CODE WORD:

(TXWAK=1)

TBP

LOGIC 0

LOGIC 1

Duty Cycle: 1/3-2/3

(TXWAK=0)

TBP=3XTE

LOGIC 0

TBP

LOGIC 1

TXWAK=0

TXWAK=1

33% Duty Cycle

10xTE Sync

Pulse

SPM = 0

SPM = 1

10xTE Header

28xTE Preamble

10xTE Sync Pulse

Bit 0

Bit 1

Header

Bit 30 Bit 31 Bit 32 Bit 33

Bit 58 Bit 59

Fixed Portion of Transmission

Encrypted Portion

Guard

LSB

MSB

VLOW

CRC0 CRC1

Time

Serial Number

Function Code

Status

Bit 60 Bit 61 Bit 62 Bit 63 Bit 64 Bit 65

CRC

Bit 66

of Transmission

HCS361 Datasheet(PDF) 27 Page - Microchip Technology

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