IDT72P51777L7-5BBI IDT, Integrated Device Technology Inc, IDT72P51777L7-5BBI Datasheet - Page 47

• Manufacturer Part Number: IDT72P51777L7-5BBI
• Description: IC FLOW CTRL 40BIT 376-BGA
• Manufacturer: IDT, Integrated Device Technology Inc

Specifications of IDT72P51777L7-5BBI

• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 72P51777L7-5BBI

MARK Operational Notes:
Write Port
IDT72P51767/72P51777 1.8V, MULTI-QUEUE FLOW-CONTROL DEVICES
(128 QUEUES) 40 BIT WIDE CONFIGURATION 5,898,240 and 11,796,480 bits
- MARKing can only occur during a Queue switch cycle
- The entire Queue is MARKed at a time.
- MARK is used to mark the first location of the Queue.
- MARK can NOT be moved within the queue.
Read Queue MARK
Write Queue MARK
1
1
A
WCLK
WADEN
1
1
A
RCLK
RADEN
RADEN
WADEN
Figure 27. MARKing a Queue - Read Queue MARK
Figure 26. MARKing a Queue - Write Queue MARK
B
1
0
B
1
0
Write Queue
Read Queue
Select Cycle
Select Cycle
A
A
This rising edge of
WCLK is the start of the
1
RCLK is the start
This rising edge of
of the
st
cycle
Selects the Queue and MARK the Queue
Selects the Queue and MARK the Queue
1
st
cycle
47
Write Queue
MARK Cycle
Read Port
Read Queue
MARK Cycle
- MARKing can only occur during a Queue switch cycle
- Only the first location of the Queue can be MARKed.
- The MARK can NOT be moved location to location within the queue.
Selects a Queue
B
Selects a Queue
B
ACTI ON
ACTI ON
COMMERCIAL AND INDUSTRIAL
6724 drw36
6724 drw37
TEMPERATURE RANGES
FEBRUARY 11, 2009