IDT82V2108BB IDT, Integrated Device Technology Inc, IDT82V2108BB Datasheet - Page 125
IDT82V2108BB
Manufacturer Part Number
IDT82V2108BB
Description
IC FRAMER T1/J1/E1 8CH 144-BGA
Manufacturer
IDT, Integrated Device Technology Inc
Datasheet
1.IDT82V2108PX8.pdf
(292 pages)
Specifications of IDT82V2108BB
Controller Type
T1/E1/J1 Framer
Interface
Parallel
Voltage - Supply
2.97 V ~ 3.63 V
Current - Supply
160mA
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
144-BGA
Screening Level
Industrial
Mounting
Surface Mount
Operating Temperature (min)
-40C
Operating Temperature (max)
85C
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
82V2108BB
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IDT82V2108
Operation
Note:
* The PACKET COUNT ,EMPTY FIFO and LINK ACTIVE is a local software variable
store the packet data
Figure 79. Interrupt Service in T1/J1 Mode HDLC Receiver
Set LINK ACTIVE * Flag
Discard this data byte,
000
N
Read RHDLC STATUS
001
Read RHDLC status
Read RHDLC data
End of Interrupt
PBS[2:0]=?
INT asserts
COLS=1
interrupt
COLS=1
RHDLC
PKIN=1
PKIN=1
OVR=1
OVR=1
FE=1
service
N
N
Y
N
N
N
N
Y
010
Clear LINK ACTIVE * Flag
Discard this data byte ,
Y
Y
Y
Y
Y
Y
115
N
PACKET COUNT * increment
PACKET COUNT * increment
check for CRC or non-integer number errors before
Store this byte, decrement the PACKET COUNT *,
Discard the last packet
Set EMPTY FIFO * flag
Set EMPTY FIFO * flag
Discard the last packet
1XX
deciding whether to keep the packet or not.
interrupt service
Other block
T1 / E1 / J1 OCTAL FRAMER
March 5, 2009
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