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HCS473 датащи(PDF) 23 Page - Microchip Technology

номер детали HCS473
подробное описание детали  KEELOQ짰 3-Axis Transcoder
PDF  68 Pages
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производитель  MICROCHIP [Microchip Technology]
домашняя страница  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

HCS473 датащи(HTML) 23 Page - Microchip Technology

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 2000-2013 Microchip Technology Inc.
Preliminary
DS40035D-page 23
HCS473
3.2.3
TRANSPONDER COMMANDS
TABLE 3-5:
LIST OF AVAILABLE TRANSPONDER COMMANDS
Command
Option
Description
Select Transponder
(Section 3.2.3.1)
0002
-
Select HCS473, used to isolate communication to a single HCS473
Present Transport Code
(1)
(Section 3.2.3.2)
0012
-
Used to gain write access to the device EEPROM memory locations
Identify Friend or Foe (IFF)
(1)
(Section 3.2.3.3)
0102
0002
32-bit IFF using the Transponder Key
0012
16-bit IFF using the Transponder Key
0102
32-bit IFF using the Encoder Key
0112
16-bit IFF using the Encoder Key
Read EEPROM
(1)
(Section 3.2.3.4)
1002
0002
Read 16-bit User EEPROM 0
0012
Read 16-bit User EEPROM 1
0102
Read 16-bit User EEPROM 2
0112
Read 16-bit User EEPROM 3
1002
Read Most Significant 16 bits of the Serial Number
1012
Read Least Significant 16 bits of the Serial Number
1102
Read 16-bit Device Identifier #1 (12-bit Vehicle ID #1 and 4-bit Token ID #1)
1112
Read 16-bit Device Identifier #2 (12-bit Vehicle ID #2 and 4-bit Token ID #1)
Write EEPROM
(1) (2)
(Section 3.2.3.5)
1012
0002
Write 16-bit User EEPROM 0
0012
Write 16-bit User EEPROM 1
0102
Write 16-bit User EEPROM 2
0112
Write 16-bit User EEPROM 3
1002
Write Most Significant 16 bits of the Serial Number
1012
Write Least Significant 16 bits of the Serial Number
1102
Write 16-bit Device Identifier #1 (12-bit Vehicle ID #1 and 4-bit Token ID #1)
1112
Write 16-bit Device Identifier #2 (12-bit Vehicle ID #2 and 4-bit Token ID #1)
Request Hopping Code
(1)
(Section 3.2.3.6)
1102
-
Request Hopping Code transmission
Anticollision OFF
(Section 3.2.3.7)
1112
-
Temporarily bypass a HCS473’s anticollision requirements.
Note 1: Command must be preceded by successful Select Transponder or Anticollision Off sequence if anticolli-
sion is enabled.
2: A successful Present Transport Code sequence must first occur to gain write access.



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