ks8701 Samsung Semiconductor, Inc., ks8701 Datasheet - Page 29

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

Host-to-Decoder Packet Descriptions
TIMING CONTROL PACKET
The packet ID for the timing control packet is 6.
Table 9: Timing Control Packet Bit Assignments
28
The timing control packet gives the host control of the timing used when the KS8701 is in asynchronous mode.
AST: A-word Search Time. The value of these bits sets the A-word search time for all asynchronous A-word
ABT: Asynchronous Battery-save Time. The value of these bits sets the battery save time (time from the
Byte 3
Byte 2
Byte 1
Byte 0
searches in units of 80ms (e.g. value of 1 is 80ms. value of 2 is 160ms, etc.) If the value is 0, the
KS8701 defaults to the 1-minute (MOT=1) or 4-minute (MOT=0) A-word search time controlled by the
MOT bit in the configuration packet. (Value after reset=0)
beginning of one automatic noise detect to the beginning of the next automatic noise detect) in
asynchronous mode in units of 80ms (e.g. value of 1 is 80ms, value of 2 is 160ms, etc.) If the value is
0, the battery save time is set to the default value of 1.5 seconds. The minimum allowed ABT is
320ms, therefore values of 1, 2, 3, and 4 are invalid. (Value after reset=0)
AST
ABT
Bit 7
0
0
7
7
AST
ABT
Bit 6
0
0
6
6
AST
ABT
Bit 5
FLEX
0
0
5
5
TM
Roaming Decoder II
AST
ABT
Bit 4
0
0
4
4
AST
ABT
Bit 3
0
0
3
3
AST
ABT
Bit 2
1
0
2
2
AST
ABT
Bit 1
1
0
1
1
AST
ABT
Bit 0
KS8701
0
0
0
0