82P2284BB IDT, Integrated Device Technology Inc, 82P2284BB Datasheet - Page 53

• Manufacturer Part Number: 82P2284BB
• Manufacturer: IDT, Integrated Device Technology Inc

Specifications of 82P2284BB

• Screening Level: Industrial
• Mounting: Surface Mount
• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Lead Free Status / RoHS Status: Not Compliant

3.9
3.9.1
performance monitoring. For different framing format, the counters are
used differently. The overflow of each counter is reflected by an Over-
flow Indication Bit, and can trigger an interrupt if the corresponding
Overflow Interrupt Enable Bit is set. This is shown in Table 22.
Functional Description
IDT82P2284
Several internal counters are used to count different events for
The internal counters can be updated in two ways:
• Auto-Update: Content in the internal counters is transfered to indi-
rect registers every one second automatically if the AUTOUPD bit
is ‘1’;
PERFORMANCE MONITOR
T1/J1 MODE
53
a new round of counting. No error event is lost during the update.
ADDR[3:0] bits. The LINKSEL[1:0] bits select the link and the ADDR[3:0]
bits select the specific PMON indirect register. Data read from the indi-
rect register is held in the DAT[7:0] bits.
QUAD T1/E1/J1 LONG HAUL / SHORT HAUL TRANSCEIVER
• Manual-Update: Content in the internal counters is transfered to
All the internal counters will be resetted after the update and will start
The indirect registers are addressed by the LINKSEL[1:0] and
indirect registers when there is a transition from ‘0’ to ‘1’ on the
UPDAT bit, no matter whether the AUTOUPD bit is ‘1’ or ‘0’.
February 25, 2008