HCS410-IP Microchip Technology, HCS410-IP Datasheet - Page 21

• Manufacturer Part Number: HCS410-IP
• Description: KEELOQ CODE HOPPING ENCODER AND TRANSPONDER
• Manufacturer: Microchip Technology

3.7
The configuration data is used to select various
encoder options. Further explanations of each of the
bits are described in the following sections.
TABLE 3-1:
3.7.1
Selecting this option allows code blanking as shown in
Table 3-3. If this option is not selected, all code words
are transmitted.
TABLE 3-3:
*If code word blanking is enabled.
TMPSD/
Symbol
MANCH
OSC0:3
BSL0:1
1997 Microchip Technology Inc.
IDAMP
CWBE
SEED/
VLOW
ACOLI
MTX3
XPRF
XSER
TBSL
DINC
IFF2
IFF2
LED
BSL 1
0
0
1
1
Configuration Data
CWBE: CODE WORD BLANKING ENABLE
BSL: BAUD RATE SELECT
Code Word Blanking Enable
Intelligent Damping for High Q LC Tank.
Enable Seed Transmissions
Temporary Seed Transmissions
Onboard Oscillator Tuning Bits
Minimum 3 Code Words Transmitted
Low Voltage Trip Point Selection
Enable LED output
Baudrate Select
Transponder Baud Page
Manchester Modulation Mode
Anti Collision Communication Enable
Passive Proximity Activation
Delayed Increment Enable
Extended Serial Number
CONFIGURATION OPTIONS
SEED
BAUD RATE SELECTION
BSL 0
0
1
0
1
Description
400 s
200 s
100 s
100 s
PWM
Code Hopping Transmissions (T
Manchester
Preliminary
800 s
400 s
200 s
200 s
3.7.2
If IDAMP is set to ‘1’ intelligent damping is disabled.
3.7.3
3.7.4
These bits allow the onboard oscillator to be tuned to
within 10% of the nominal oscillator speed over both
temperature and voltage.
TABLE 3-2:
Transmitted*
Codes Word
OSC
1000
1001
1010
1111
0000
0001
0010
0110
0111
1 of 2
1 of 2
1 of 4
•
•
•
•
•
•
SEED
All
E
)
0
0
1
1
IDAMP: INTELLIGENT DAMPING
SEED, TMPSD:
OSC: OSCILLATOR TUNING BITS
Transponder Communication (T
OSCILLATOR TUNING
TBSL
TMPSD
—
—
0
1
0
1
0
1
Description
SEED TRANSMISSION
Nominal
Slowest
Fastest
Slower
Faster
HCS410
DS40158C-page 21
Always Enabled
IFF2/No Seed
Seed Limited
Description
No Seed
200 s
100 s
PPM
—
—
E
)