DS_S5T8702 Datasheet, PDF (34/62 Pages) Samsung semiconductor – FEEX ALPHANUMERIC DECODER II

S5T8702
FEEX^TM ALPHANUMERIC DECODER II
ADDRESS PACKET
The Address Field follows the Block Information Field in the FLEX protocol. It contains all of the address in the
frame.
If less than three bit errors are detected in a received address word and it matches an enabled address assigned
to the S5T8702, an Address Packet will be sent to the host processor. The Address Packet contains assorted
data about the address and its associated vector and message. The ID of an Address Packet is 1 (decimal).
Byte 3
Byte 2
Byte 1
Byte 0
Bit 7
0
PA
AI₇
TOA
Table 20: Address Packet Bit Assignments
Bit 6
0
p₁
AI₆
WN₆
Bit 5
0
p₀
AI₅
WN₅
Bit 4
0
LA
AI₄
WN₄
Bit 3
0
x
AI₃
WN₃
Bit 2
0
x
AI₂
WN₂
Bit 1
0
x
AI₁
WN₁
Bit 0
1
x
AI₀
WN₀
PA:
p:
LA:
AI:
TOA:
WN:
x:
Priority Address. Set if the address was received as a priority address.
Phase on which the address was detected (0=a, 1=b, 2=c, 3=d)
Long Address type. Set if the address was programmed in the S5T8702 as a long address.
Address Index (valid values are 0 through 15 and 128 through 159). The index identifies which of
the addresses was detected. Values 0 through 15 correspond to the 16 programmable address
words. Values 128 through 143 correspond to the 16 temporary addresses. Values 144 through 159
correspond to the 16 operator messaging addresses. For long addresses, the address detect packet
will only be sent once and the index will refer to the second word of the address.
Tone Only Address. Set if the address was programmed in the S5T8702 as a tone-only address.
This bit will never be set for temporary or operator messaging addresses. No vector word will be
sent for tone-only addresses.
Word number of vector (2 - 87). Describes the location in the frame of the vector word for the
detected address. This value is invalid for this packet if the TOA bit is set.
Unused bits. The value of these bits is not guaranteed.
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