STLC5466 STMicroelectronics, STLC5466 Datasheet - Page 49

• Manufacturer Part Number: STLC5466
• Description: RF Wireless Misc Multi-HDLC Sw Matrix
• Manufacturer: STMicroelectronics
• Type: Telecom ICr

Specifications of STLC5466

• Operating Temperature Range: - 40 C to + 85 C
• Package / Case: LQFP-176
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

FM
CRC
AR10
AR11
AR20
AR21
AR21
Second Byte
0
0
0
0
0
0
0
0
1
1
: Flag Monitoring
: CRC stored in external memory
: Address Recognition10
: Address Recognition 11
: Address Recognition 20
: Address Recognition 21
AR20
This bit is a status bit read by the microprocessor.
FM=1: HDLC Controller is receiving a frame or HDLC Controller has just received one flag.
FM is put to 0 by the microprocessor.
CRC = 1, the CRC is stored at the end of the frame in external memory.
CRC = 0, the CRC is not stored into external memory.
AR10 = 1, First byte after opening flag of received frame is compared to AF0/7 bits of AFRDR.
If the first byte received and AF0/7 bits are not identical the frame is ignored.
AR10 = 0, First byte after opening flag of received frame is not compared to AF0/7 bits of
AFRDR Register.
AR11 = 1, First byte after opening flag of received frame is compared to all “1”s.If the first byte
received is not all “1”s the frame is ignored.
AR11 = 0, First byte after opening flag of received frame is not compared to all “1”s.
AR20 = 1, Second byte after opening flag of received frame is compared to AF8/15 bits of
AFRDR Register. If the second byte received and AF8/15 bits are not identical the frame is ig-
nored.
AR20 = 0, Second byte after opening flag of received frame is not compared to AF8/15 bits of
AFRDR Register.
AR21 = 1, Second byte after opening flag of received frame is compared to all “1”s. If the Sec-
ond byte received is not all “1”s the frame is ignored.
AR21 = 0, Second byte after opening flag of received frame is not compared to all “1”s.
0
0
0
0
1
1
1
1
0
0
AR11
First Byte
0
0
1
1
0
0
1
1
0
0
AR10
0
1
0
1
0
1
0
1
0
1
Each frame is received without condition.
Only value of the first received byte must be equal to that of AF0/7 bits.
Only value of the first received byte must be equal to all “1”s.
The value of the first received byte must be equal either to that of AF0/7 or to all
“1”s.
Only value of the second received byte must be equal to that of AF8/15 bits.
The value of the first received byte must be equal to that of AF0/7 bits and the
value of the second received byte must be equal to that of AF8/15 bits.
The value of first received byte is must be equal to all “1”s and the value of sec-
ond received byte must be equal to that of AF8/15 bits.
The value of the first received byte must be equal either to that of AF0/7 or to all
“1”s and the value of the second received byte must be equal to that of AF8/15
bits.
Only the value of the second received byte must be equal to all “1”s.
The value of the first received byte must be equal to that of AF0/7 bits and the
value of the second received byte must be equal to all “1”s.
Conditions to Receive a Frame
STLC5466
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