IDT82P2282PFG8 IDT, Integrated Device Technology Inc, IDT82P2282PFG8 Datasheet - Page 87
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IDT82P2282PFG8
Manufacturer Part Number
IDT82P2282PFG8
Description
TXRX T1/J1/E1 2CHAN 100-TQFP
Manufacturer
IDT, Integrated Device Technology Inc
Type
Transceiverr
Datasheet
1.IDT82P2282PF8.pdf
(381 pages)
Specifications of IDT82P2282PFG8
Number Of Drivers/receivers
2/2
Protocol
IEEE 1149.1
Voltage - Supply
3 V ~ 3.6 V
Mounting Type
Surface Mount
Package / Case
100-TQFP, 100-VQFP
Screening Level
Industrial
Pin Count
100
Mounting
Surface Mount
Package Type
TQFP
Operating Temperature (min)
-40C
Operating Temperature (max)
85C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
82P2282PFG8
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Part Number:
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Manufacturer:
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3.20.2
form HDLC packet data stream.
3.20.2.1
(#1, #2 & #3) per link are provided for HDLC insertion to the data stream
to be transmitted. In T1/J1 mode SF & SLC-96 formats, two HDLC
Transmitters (#2 & #3) per link are provided for HDLC insertion. In E1
mode, three HDLC Transmitters (#1, #2 & #3) per link are provided for
HDLC insertion. Except in T1/J1 mode ESF & T1 DM formats, the HDLC
channel of HDLC Transmitter #1 is fixed in the DL bit (in ESF format)
and D bit in CH24 (in T1 DM format) respectively (refer to Table 13 &
Table 14), the other HDLC channel is configured as the follows:
odd frames;
assigned frame;
timeslot.
if the corresponding TDLEN bit is set to ‘1’.
Table 51: Related Bit / Register In Chapter 3.20.2.1
IDT82P2282
BITEN[7:0]
TDLEN3
TDLEN2
TDLEN1
TS[4:0]
EVEN
ODD
The HDLC Transmitter inserts the data into the selected position to
In T1/J1 mode ESF & T1 DM formats, three HDLC Transmitters
1. Set the EVEN bit and/or the ODD bit to select the even and/or
2. Set the TS[4:0] bits to define the channel/timeslot of the
3. Set the BITEN[7:0] bits to select the bits of the assigned channel/
Then all the functions of the HDLC Transmitter will be enabled only
Bit
HDLC TRANSMITTER
ment / THDLC3 Assignment
HDLC Channel Configuration
only) / THDLC2 Bit Select /
THDLC1 Assignment (E1
only) / THDLC2 Assign-
THDLC1 Bit Select (E1
THDLC Enable Control
THDLC3 Bit Select
Register
085, 185(E1 only) / 086, 186 / 087,
088, 188 (E1 only) / 089, 189 /
Address (Hex)
08A, 18A
084, 184
187
87
3.20.2.2
selects the HDLC mode (per Q.921).
3.20.2.2.1
DAT[7:0] bits. The FIFO depth is 128 bytes. When it is full, it will be indi-
cated by the FUL bit. When it is empty, it will be indicated by the EMP bit.
EOM bit, or if the data in the FIFO exceeds the upper threshold set by
the HL[1:0] bits, the data in the FIFO will be transmitted. The opening
flag (‘01111110’) will be prepended before the data automatically. The
transmission will not stop until the entire HDLC data are transmitted.
Then the 2-byte FCS and the closing flag (‘01111110’) will be added to
the end of the HDLC data automatically. During the HDLC data trans-
mission, a zero is stuffed automatically into the serial output data if there
are five consecutive ’One’s ahead.
packet anytime when the ABORT bit is set. Or when the FIFO is empty
and the transmitted last byte is not the end of the current HDLC packet,
the abort sequence will be transmitted automatically.
FIFO to be transmitted, the 7E (Hex) flag will always be transmitted.
3.20.2.3
threshold set by the LL[1:0] bits, it will be indicated by the RDY bit. When
there is a transition (from ‘0’ to ‘1’) on the RDY bit, the RDYI bit will be
set. In this case, if enabled by the RDYE bit, an interrupt will be reported
by the INT pin.
ted byte is not the end of the current HDLC packet, the UDRUNI bit will
be set. In this case, if enabled by the UDRUNE bit, an interrupt will be
reported by the INT pin.
3.20.2.4
‘0’ to ‘1’ on the TRST bit. The reset will clear the FIFO.
DUAL T1/E1/J1 LONG HAUL / SHORT HAUL TRANSCEIVER
Setting the THDLCM bit to ‘0’ (default) in the HDLC Transmitter
A FIFO buffer is used to store the HDLC data written in the
If an entire HDLC packet is stored in the FIFO indicated by the
The abort sequence (‘01111111’) will be inserted to the HDLC
If the TDLEN bit is enabled and there is no HDLC packet in the
In the HDLC mode, when the data in the FIFO is below the lower
In the HDLC mode, when the FIFO is empty and the last transmit-
The HDLC Transmitter will be reset when there is a transition from
HDLC Mode
Interrupt Summary
Reset
HDLC Mode
August 20, 2009
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