參數(shù)資料
型號(hào)： HCS473IPROM
廠商： Microchip Technology Inc.
英文描述： Code Hopping Encoder and Transponder
中文描述： 跳碼編碼器和轉(zhuǎn)發(fā)器
文件頁(yè)數(shù)： 25/68頁(yè)
文件大?。?/td> 1629K
代理商： HCS473IPROM
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)
000
2
-
Select HCS473, used to isolate communication to a single HCS473
Present Transport Code
(1)
(Section 3.2.3.2)
001
2
-
Used to gain write access to the device EEPROM memory locations
Identify Friend or Foe (IFF)
(1)
(Section 3.2.3.3)
010
2
000
2
001
2
010
2
011
2
32-bit IFF using the Transponder Key
16-bit IFF using the Transponder Key
32-bit IFF using the Encoder Key
16-bit IFF using the Encoder Key
Read EEPROM
(1)
(Section 3.2.3.4)
100
2
000
2
001
2
010
2
011
2
100
2
101
2
110
2
111
2
Read 16-bit User EEPROM 0
Read 16-bit User EEPROM 1
Read 16-bit User EEPROM 2
Read 16-bit User EEPROM 3
Read Most Significant 16 bits of the Serial Number
Read Least Significant 16 bits of the Serial Number
Read 16-bit Device Identifier #1 (12-bit Vehicle ID #1 and 4-bit Token ID #1)
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)
101
2
000
2
001
2
010
2
011
2
100
2
101
2
110
2
111
2
Write 16-bit User EEPROM 0
Write 16-bit User EEPROM 1
Write 16-bit User EEPROM 2
Write 16-bit User EEPROM 3
Write Most Significant 16 bits of the Serial Number
Write Least Significant 16 bits of the Serial Number
Write 16-bit Device Identifier #1 (12-bit Vehicle ID #1 and 4-bit Token ID #1)
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)
110
2
-
Request Hopping Code transmission
Anticollision OFF
(Section 3.2.3.7)
111
2
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.
-
Temporarily bypass a HCS473’s anticollision requirements.
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