IDT82V2108PX8 IDT, Integrated Device Technology Inc, IDT82V2108PX8 Datasheet - Page 109

• Manufacturer Part Number: IDT82V2108PX8
• Description: IC FRAMER T1/J1/E1 8CH 128-PQFP
• Manufacturer: IDT, Integrated Device Technology Inc

Specifications of IDT82V2108PX8

• 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: 128-MQFP, 128-PQFP
• 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: 82V2108PX8

IDT82V2108
Operation
Note:
* The PACKET COUNT, EMPTY FIFO and LINK ACTIVE are local software variable.
store the packet data
Set LINK ACTIVE * Flag
Discard this data byte,
Figure 73. Interrupt Service in E1 Mode HDLC Receiver
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
OVR=1
PKIN=1
OVR=1
PKIN=1
FE=1
Service
Y
N
N
N
N
N
N
Y
010
Clear LINK ACTIVE * Flag
Discard this data byte,
Y
Y
Y
Y
Y
Y
99
N
PACKET COUNT * increment
PACKET COUNT * increment
check for CRC or non-integer number of bytes errors
Discard the last packet
Set EMPTY FIFO flag
Discard the last packet
Store this byte, decrement the PACKET COUNT *,
before deciding whether to keep the packet or not.
1XX
Set EMPTY FIFO * flag
interrupt service
Other block
T1 / E1 / J1 OCTAL FRAMER
March 5, 2009