ks8701 Samsung Semiconductor, Inc., ks8701 Datasheet - Page 31

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

Host-to-Decoder Packet Descriptions
RECEIVER CONTROL CONFIGURATION PACKETS
to apply the setting, and when to read the value of the LOBAT input pin. For a more detailed description of how
the KS8701 uses these settings see “Receiver Control” on page 55. The KS8701 defines 12 different receiver
control settings. Proper operation is not guaranteed if these settings are changed when decoding is enabled (i.e.
the ON bit in the Control Packet is set). The IDs for these packets range from 16 to 27 (decimal).
RECEIVER OFF SETTING PACKET
Table 11: Receiver Off setting Packet Bit Assignments
30
These packets allow the host to configure what setting is applied to the receiver control lines SO-S7, how long
LBC: Low Battery Check. If this bit is set, the KS8701 will check the status of the LOBAT port just before
CLS: Control Line Setting. This is the value to be output on the receiver control lines (S0 - S7) for this
ST:
Byte 3
Byte 2
Byte 1
Byte 0
leaving this receiver state. (value after reset=0)
receiver state. (value after reset=0)
state’ s receiver control value to the receiver control lines. The setting is in steps of 625us. Valid values
are 625us (ST=01) to 159.375ms (ST=FF in hexadecimal). (value after reset=625us)
Step Time. This is the time the KS8701 is to keep the receiver off before applying the first warm up
CLS
Bit 7
ST
0
0
7
7
CLS
Bit 6
ST
0
0
6
6
CLS
Bit 5
FLEX
ST
0
0
5
5
TM
Roaming Decoder II
CLS
Bit 4
ST
1
0
4
4
CLS
Bit 3
LBC
ST
0
3
3
CLS
Bit 2
ST
0
0
2
2
CLS
Bit1
ST
0
0
1
1
CLS
Bit 0
ST
KS8701
0
0
0
0