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HCS473-SLROM 数据表(PDF) 25 Page - Microchip Technology |
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HCS473-SLROM 数据表(HTML) 25 Page - Microchip Technology |
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25 / 68 page  2002 Microchip Technology Inc. Preliminary DS40035C-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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