HCS301_01 Datasheet, PDF (17/30 Pages) Microchip Technology – KEELOQ CODE HOPPING ENCODER

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)
HCS301
Stored
Synchronization
Counter Value
Single Operation
Window
(16 Codes)
© 2001 Microchip Technology Inc.
DS21143B-page 17