HCS361_11 Datasheet, PDF (10/42 Pages) Microchip Technology – KEELOQ® Code Hopping Encoder incorporates high security,

HCS361
3.5.12 DELM: DELAY MODE
If DELM = 1, delay transmission is enabled. A delayed
transmission is indicated by inverting the lower nibble
of the discrimination value. The Delay mode is primarily
for compatibility with previous KEELOQ devices.
If DELM = 0, delay transmission is disabled (Table 3-
1).
TABLE 3-1: TYPICAL DELAY TIMES
TXWAK
0
0
1
1
BSEL
0
1
0
1
Number of Code Words before
Delay Mode
Time Before Delay Mode (MOD = 0)
28
≈ 2.8s
56
≈ 2.9s
28
≈ 2.6s
56
≈ 2.8s
3.5.13 TIMO: TIME-OUT
OR AUTO-SHUTOFF
If TIMO = 1, the time-out is enabled. Time-out can be
used to terminate accidental continuous transmissions.
When time-out occurs, the PWM output is set low and
the LED is turned off. Current consumption will be
higher than in Standby mode since current will flow
through the activated input resistors. This state can be
exited only after all inputs are taken low. TIMO = 0, will
enable continuous transmission (Table 3-5).
TABLE 3-5: TYPICAL TIME-OUT TIMES
TXWAK
BSEL
Maximum Number of Code Words
Transmitted
Time Before Time-out (MOD = 0)
0
0
256
0
1
512
1
0
256
1
1
512
≈ 25.6s
≈ 27.2s
≈ 23.8s
≈ 25.4s
DS40146F-page 10
© 2011 Microchip Technology Inc.