ks8701 Samsung Semiconductor, Inc., ks8701 Datasheet - Page 23

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

Host-to-Decoder Packet Descriptions
automatically by the FLEX stack software version 1.2 and greater.
packet to the positive edge of the last clock of the next packet:
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NOTES: Turning off the KS8701 must be done using the following sequence. This sequence is performed
EAE: End of Addresses Enable. When this bit is set, the EA bit in the Status Packet will be set immediately
ON:
1. Turn off the KS8701 by sending a Control Packet with the ON bit cleared.
2. Turn on the KS8701 by sending a Control Packet with the ON bit set.
3. Turn off the KS8701 by sending a Control Packet with the ON bit cleared.
Timing between these steps is specified below and is measured from the positive edge of the last clock of one
l
l
l
l
The minimum time between steps 1 and 2 is 2ms or the programmed shut down time, whichever is
greater. The programmed shut down time is the sum of all the of the times . programmed in the used
Receiver Shut Down Settings Packets.
There is no maximum time between steps 1 and 2.
The minimum time between steps 2 and 3 is 2ms.
The maximum time between steps 2 and 3 is the programmed warm up time minus 2ms. The
programmed warm up time is the sum of all the of the times programmed in the used Receiver Warm Up
Settings Packets.
Turn On Decoder. Set if the KS8701 should be decoding FLEX signals. Clear if signal processing
after the KS8701 decodes the last address word in the frame if there was any address detected in the
frame. When this bit is cleared, the EA bit will never be set.
should be off (very low power mode). If the ON bit is changed twice and the control packets making the
changes are received within 2ms of each other, the KS8701 may ignore the double change and stay in
its original state (e.g. if it is turned off then on again within 2ms it may stay on and ignore the off pulse).
Therefore it is recommended that the host insures a minimum of 2ms between changes in the ON bit.
(value after reset=0)
FLEX
TM
Roaming Decoder II
KS8701