ks8701 Samsung Semiconductor, Inc., ks8701 Datasheet - Page 36

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

KS8701
FRAME ASSIGNMENT PACKETS
The KS8701 must be configured so that a frame that is assigned by one or more of the addresses’ home frames
and battery cycles has its corresponding configuration bit set. For example, if the KS8701 has one enabled
address and it is assigned to frame 3 with a battery cycle of 4, the AF bits for frames 3, 19, 35, 51, 67, 83, 99, and
115 should be set and the AF bits for all other frames should be cleared.
Packet, the KS8701 will not apply the received system collapse to the AF bits. The host should set the AF bits for
all frames that should be decoded on all channels. For example, if frames 0 and 64 should be decoded on one
channel and frames 4, 36, 68, and 100 should be decoded on another channel, all six of the corresponding AF
bits should be set. The host can then change the receiver’s carrier frequency after the KS8701 decodes frames 0,
36, 64, and 100.
Table 16: Frame Assignment Packet Bit Assignments
The FLEX protocol defines that each address of a FLEX pager is assigned a home frame and a battery cycle.
When the KS8701 is configured for manual collapse mode by setting the MCM bit in the Roaming Control
There are 8 Frame Assignment Packets. The Packet IDs for these packets range from 32 to 39 (decimal).
f:
AF:
Byte 3
Byte 2
Byte 1
Byte 0
according to the following table. At least one of these bits must be set when the KS8701 is turned on
by setting the ON bit in the control packet. (value after reset=0)
an address’ s home frame and pager collapse. (value after reset=0)
Frame range. This value determines which 16 frames correspond to the 16 AF bits in the packet
Assigned Frame. If a bit is set, the KS8701 will consider the corresponding frame to be assigned via
Bit 7
AF
AF
0
0
15
7
Bit 6
AF
AF
0
0
14
6
f
000
001
010
011
100
101
110
111
2
f
1
f
0
Bit 5
AF
FLEX
AF
1
0
13
5
TM
Roaming Decoder II
Frame 127
Frame 111
Bit 4
AF
Frame 95
Frame 79
Frame 63
Frame 47
Frame 31
Frame 15
AF
0
0
AF
12
4
15
Bit 3
AF
AF
0
0
11
3
Frame 112
Host-to-Decoder Packet Descriptions
Frame 96
Frame 80
Frame 64
Frame 48
Frame 32
Frame 16
Frame 0
Bit 2
AF
AF
AF
f
0
2
10
2
0
Bit 1
AF
AF
f
0
1
9
1
Bit 0
AF
AF
f
0
0
8
0
35