Microchip Technology PRO MATE II, Manual

Page: 29 / 48

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1999 Microchip Technology Inc. DS30243H-page 25
Chapter 3. Programming K
EE
L
OQ
®
Devices
3.7 HCS201 Options
The programming dialog for HCS201 devices is shown in Figure 3.7.
Selectable options in this dialog are described in Table 3.3. Options
automatically set are described in Table 3.4.
Figure 3.7: Program Security Device Dialog – HCS201
Table 3.3: Selectable Options – HCS201
Option Description
User Serial
Number The encoder’s 32-bit (8-hex digits) serial number should
be entered here. If the Auto Increment check box is
selected, the serial number and/or user seed will be
automatically incremented when an encoder is
successfully programmed.
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.
Low Voltage Trip Low: V
LOW
bit in transmission set at V
DD
= 4V.
High: V
LOW
bit in transmission set at V
DD
= 8V.
Extended Serial
Number If checked, the full 32-bit serial number is transmitted. If
not checked, the most significant nibble of the serial
number is replaced by the function code.
Start Pulse Enable If checked, a Start pulse is transmitted before the first
transmission.
Minimum 4 Tx If checked, at least four complete code words are
transmitted each time the encoder is activated, even if
all buttons are released.
S3 Set If checked, S3 is always transmitted as a 1. If not
checked, S3 in the transmitted function code mirrors the
value of S2.