ks8701 Samsung Semiconductor, Inc., ks8701 Datasheet - Page 68

• Manufacturer Part Number: ks8701
• Description: Flextm Roaming Decoder Ii
• Manufacturer: Samsung Semiconductor, Inc.

KS8701
CALCULATING HOW LONG TASKS TAKE
KS8701 is battery saving, it is necessary for the host to know how long it can take the KS8701 to perform a task.
the last SPI clock of the packet that initiates the task to the time the receiver shutdown sequence starts. Note that
the receiver shutdown sequence must start before tasks are disabled.
in the roaming control packet. This formula assumes that (1) the noise detect was performed while in synchronous
mode or (2) the noise detect was performed in asynchronous mode and did not find FLEX signal or (3) the noise
detect found FLEX signal but the DAS bit of the roaming control packet was set.
bit in the roaming control packet. This formula assumes that the A-word search failed to find roaming FLEX
channel.
This can occur when the noise detect is performed while in asynchronous mode, the noise detect finds FLEX
signal, and the DAS bit of the roaming control packet is not set.
Since the Time To Task Disabled discussed in the previous section limits how much the host can do while the
The formulas below calculate how long the two types of host initiated tasks take to complete as measured from
The following formula calculates how long it will take to complete a Noise Detect started by setting the SND bit
Where,
The following formula calculates how long it will take to complete an A-word search initiated by setting the SAS
Where,
The following formula calculates how long it will take to complete a Noise Detect/A-word search combination.
Where,
Time To Perform Noise Detect ² Total Warm Up Time + 82ms
Total Warm Up Time: The sum of the times programmed for the used warm up steps plus the time
Time To Perform A word Search ² Total Warm Up Time + AST + 47ms
Total Warm Up Time: The sum of the times programmed for the used warm up steps plus the time
AST:
Time To Perform Both ² Total Warm Up Time + AST + 127ms
Total Warm Up Time: The sum of the times programmed for the used warm up steps plus the time
AST:
programmed for the 3200sps Sync Setting in the receiver control configuration
packets.
programmed for the 3200sps Sync Setting in the receiver control configuration
packets.
programmed for the 3200sps Sync Setting in the receiver control configuration
packets.
The value configured using the timing control packet.
The value configured using the timing control packet.
FLEX
TM
Roaming Decoder II
Appendix A: Application Notes
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