Microchip Technology PRO MATE II, Manual

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1999 Microchip Technology Inc. DS30243H-page 27
Chapter 3. Programming K
EE
L
OQ
®
Devices
Baud Rate Select 400 uS All: Basic Pulse Width (BPW) of 400 µs with all
the code words transmitted.
200 uS 1/2: BPW of 200 µs and one in two code words
transmitted.
100 uS 1/2: BPW of 100 µs and one in two code words
transmitted.
100 uS 1/4: BPW of 100 µs and one in four code words
transmitted.
Auto Shutoff Timer The automatic shutoff can be enabled preventing the
battery of a transmitter going flat if the transmitter is
accidentally pressed in a pocket or purse.
Table 3.6: Options Automatically Set – HCS300/301/320
Option Set To
SEED* The 32-bit SEED is a randomly generated number.
EN_KEY The 16-bit envelope key is set to 0000 and envelope
encryption is disabled in the configuration word.
Discrimination Bits The discrimination bits in the configuration word are set
to mirror the 12 least significant bits of the serial
number.
EENC Envelope Encryption Select bit in the configuration word
is automatically cleared as none of the decoders
currently support envelope encryption.
* Not available on the HCS320
Table 3.5: Selectable Options – HCS300/301/320 (Continued)
Option Description