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HCS412 数据表(PDF) 23 Page - Microchip Technology

部件名 HCS412
功能描述  KEELOQ짰 Code Hopping Encoder and Transponder Burglar alarm systems
PDF  52 Pages
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制造商  MICROCHIP [Microchip Technology]
网页  http://www.microchip.com
标志 MICROCHIP - Microchip Technology

HCS412 数据表(HTML) 23 Page - Microchip Technology

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© 2011 Microchip Technology Inc.
DS41099D-page 23
HCS412
TABLE 4-5:
LIST OF WRITE COMMANDS
FIGURE 4-5:
WRITE TO SERIAL NUMBER OR CONFIGURATION
FIGURE 4-6:
WRITE TO USER AREA
Command
Description
Expected data In
Response if Write is Successful
01001
Write Configuration word
28-bit Transport code; 16-Bit
configuration word
Write Acknowledge pulse
01010
Write low serial number
28-bit Transport code; Least Significant
16 bits of the serial number (SER0)
Write Acknowledge pulse
01011
Write high serial number
28-bit Transport code; Most Significant
16 bits of the serial number (SER1)
Write Acknowledge pulse
01100
Write user EEPROM 0
16 Bit User EEPROM USR0
Write Acknowledge pulse
01101
Write user EEPROM 1
16 Bit User EEPROM USR1
Write Acknowledge pulse
01110
Write user EEPROM 2
16 Bit User EEPROM USR2
Write Acknowledge pulse
01111
Write user EEPROM 3
16 Bit User EEPROM USR3
Write Acknowledge pulse
Activate
Field
ACK
Delay to
Command
Command
Delay to
TCODE
Transport
Write ACK
Delay before Write
ACK
28-bit
Delay to
Data
Code
16 bits Data
Transport
Code
28-bit
TWR
Command
TOTD
Write Delay
Communication from reader to HCS412
Communication from HCS412 to reader
Start
2 LFTE
Start
2 LFTE
Start
2 LFTE
ACK
ACK
TTTD
TPU
TATO
16
Data Bits
Command
ACK
Write Delay
16
TWR
ACK
Communication from reader to HCS412
Communication from HCS412 to reader
Start
2 LFTE
Start
2 LFTE
TOTD
TPU
TATO
Activate
Field
ACK
Delay to
Command
Command
Delay to
Data
16 bits Data
Write ACK
Delay before Write
ACK
Data Bits



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