HCS410-IST MICROCHIP [Microchip Technology], HCS410-IST Datasheet - Page 20

• Manufacturer Part Number: HCS410-IST
• Manufacturer: MICROCHIP [Microchip Technology]

HCS410
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:
DS40158E-page 20
TMPSD/
Symbol
MANCH
OSC0:3
BSL0:1
IDAMP
Note:
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
*If code word blanking is enabled.
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 Rate
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 µs
200 µs
100 µs
100 µs
PWM
Code Hopping Transmissions (T
Manchester
Preliminary
800 µs
400 µs
200 µs
200 µs
3.7.2
If IDAMP is set to ‘1’ intelligent damping is disabled.
3.7.3
* Seed transmissions are allowed till the sychroniza-
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
tion counter crosses a XX7F
counter is initialized to 0000
programmed, seed transmissions will be allowed
until the counter wraps from 007F
the user 127 transmissions before seed transmis-
sions are disabled.
1000
1001
1010
1111
0000
0001
0010
0110
0111
OSC
1 of 2
1 of 2
1 of 4
•
•
•
•
•
•
SEED
All
E
0
0
1
1
)
IDAMP: INTELLIGENT DAMPING
SEED, TMPSD: SEED TRANSMISSION
OSC: OSCILLATOR TUNING BITS
Transponder Communication (T
OSCILLATOR TUNING
TMPSD
TBSL
 2001 Microchip Technology Inc.
0
1
0
1
—
—
0
1
Description
Nominal
Slowest
Fastest
Slower
Faster
16
16
boundary. e.g. If the
No Seed/1 IFF Key
when the device is
16
Always Enabled
IFF2/No Seed/2
Seed Limited*
Description
to 0080
IFF Keys
200 µs
100 µs
PPM
—
—
16
giving
E
)