HCS320 Datasheet, PDF (18/32 Pages) Microchip Technology – KEELOQ Code Hopping Encoder

HCS320
FIGURE 7-3:
SYNCHRONIZATION WINDOW
Entire Window
rotates to eliminate
use of previously
used codes
Blocked
Window
(32K Codes)
Double Operation
(resynchronization)
Window
(32K Codes)
Stored
Synchronization
Counter Value
Single Operation
Window
(16 Codes)
DS41097C-page 18
© 2001 Microchip Technology Inc.