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MCS3142-I/ST Datasheet(PDF) 9 Page - Microchip Technology

No. de pieza MCS3142-I/ST
Descripción Electrónicos  MCS3142 Dual KEELOQ짰 Technology Encoder Data Sheet
PDF  37 Pages
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Fabricante Electrónico  MICROCHIP [Microchip Technology]
Página de inicio  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

MCS3142-I/ST Datasheet(HTML) 9 Page - Microchip Technology

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 2014 Microchip Technology Inc.
DS40001747A-page 9
MCS3142
3.2
Configuration Byte Details
The following tables describe Configuration bytes in
detail.
TABLE 3-2:
CLASSIC KEELOQ® TECHNOLOGY CRYPT KEY CONFIGURATION REGISTERS
Byte Address
Bit
Description
Values
0x00
7:0
Crypt Key
Least Significant eight bits of the crypt key
0x01
7:0
Byte 1 of the crypt key
0x02
7:0
Byte 2 of the crypt key
0x03
7:0
Byte 3 of the crypt key
0x04
7:0
Byte 4 of the crypt key
0x05
7:0
Byte 5 of the crypt key
0x06
7:0
Byte 6 of the crypt key
0x07
7:0
Most Significant eight bits of the crypt key
TABLE 3-3:
CLASSIC KEELOQ® TECHNOLOGY SEED CONFIGURATION REGISTERS
Byte Address
Bit
Description
Values
0x08
7:0
Seed
Least Significant eight bits of the seed
0x09
7:0
Byte 1 of the seed
0x0A
7:0
Byte 2 of the seed
0x0B
7:0
Byte 3 of the seed
0x0C
7:0
Byte 4 of the seed
0x0D
7:0
Byte 5 of the seed
0x0E
7:0
Byte 6 of the seed
0x0F
7:0
Most Significant eight bits of the seed
TABLE 3-4:
CLASSIC KEELOQ® TECHNOLOGY SERIAL NUMBER CONFIGURATION REGISTERS
Byte Address
Bit
Description
Values
0x10
7:0
Serial Number
Least Significant eight bits of the serial number
0x11
7:0
Byte 1 of the serial number
0x12
7:0
Byte 2 of the serial number
0x13
3:0
Most Significant four bits of the serial number
7:4
Reserved
Maintain as ‘0000’
TABLE 3-5:
CLASSIC KEELOQ® TECHNOLOGY DISC CONFIGURATION REGISTERS
Byte Address
Bit
Description
Values
0x14
7:0
DISC Value
Least Significant eight bits of DISC value
0x15
1:0
Most Significant two bits of DISC value
7:2
Reserved
Maintain as ‘000000’



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