HCS473 Datasheet, PDF (63/68 Pages) Microchip Technology – Code Hopping Encoder and Transponder

INDEX
A
AC Characteristics .............................................................. 52
Anti-Collision Off ................................................................. 30
Assembler
MPASM Assembler ..................................................... 43
C
CODE HOPPING COMMAND ('110') ................................. 29
Code Hopping Modulation Format ...................................... 13
Configuration Summary ...................................................... 35
Consecutive Command Considerations.............................. 30
Counter Overflow Bits (OVR1, OVR0) ................................ 18
Cycle Redundancy Check (CRC) ....................................... 18
D
DATA .................................................................................... 6
DC Characteristics .............................................................. 50
Development Support ......................................................... 43
Device Description ................................................................ 5
Device Operation ................................................................ 11
Discrimination Value (DISC) ............................................... 18
E
Electrical Characteristics
Absolute Maximum Ratings ........................................ 49
Encoder Activation .............................................................. 11
Encoder Interface.................................................................. 7
Encoder Mode Options ....................................................... 14
Encoder Operation ................................................................ 1
Encoder Security................................................................... 1
Errata .................................................................................... 2
G
General Description .............................................................. 3
H
HCS473 Hopping Code ........................................................ 4
HCS473 Security .................................................................. 4
HCS473 Transponder Start Sequence ............................... 22
I
ICEPIC In-Circuit Emulator ................................................. 44
IFF Challenge and Response ............................................. 26
Integrating the HCS473 Into A System ............................... 39
Internal RC Oscillator ............................................................ 9
K
KEELOQ Evaluation and Programming Tools .................... 46
Key Terms............................................................................. 3
L
lccom..................................................................................... 7
LED ....................................................................................... 7
LED Operation .................................................................... 17
LF Communication Analog Delays...................................... 30
LF Response Considerations.............................................. 30
Low Voltage Detector............................................................ 9
Low-End System Security Risks ........................................... 4
M
MPLAB C17 and MPLAB C18 C Compilers........................ 43
MPLAB ICD In-Circuit Debugger ........................................ 45
HCS473
MPLAB ICE High Performance Universal In-Circuit Emulator
with MPLAB IDE ................................................................. 44
MPLAB Integrated Development Environment Software.... 43
MPLINK Object Linker/MPLIB Object Librarian .................. 44
P
Packaging Information ........................................................ 57
Peripherals ........................................................................... 1
PICDEM 1 Low Cost PICmicro Demonstration Board ........ 45
PICDEM 17 Demonstration Board...................................... 46
PICDEM 2 Low Cost PIC16CXX Demonstration Board ..... 45
PICDEM 3 Low Cost PIC16CXXX Demonstration Board ... 46
PICSTART Plus Entry Level Development Programmer.... 45
Present Transport Code ..................................................... 25
PRO MATE II Universal Device Programmer ..................... 45
Product Identification System ............................................. 64
Programming Specification................................................. 37
R
Read Sequence .................................................................. 27
Receive Stability - Calculating Communiction .................... 32
Request Hopping Code Command..................................... 29
RFEN During LF Communication ....................................... 33
S
S0 ......................................................................................... 6
s3 .......................................................................................... 6
Select Transponder ............................................................ 24
Software Simulator (MPLAB SIM) ...................................... 44
T
Transmitted Code Word...................................................... 11
Transponder Characteristics............................................... 51
Transponder Commands .................................................... 23
Transponder Communication ............................................. 21
Transponder Interface .......................................................... 8
Transponder Mode ............................................................. 18
Transponder Operation......................................................... 1
Transponder Options .......................................................... 19
Transponder Security ........................................................... 1
Typical Applications .............................................................. 1
W
Wake-Up Logic ..................................................................... 7
WWW, On-Line Support ....................................................... 2
 2002 Microchip Technology Inc.
Preliminary
DS40035C-page 61