IDT72P51777L7-5BBI IDT, Integrated Device Technology Inc, IDT72P51777L7-5BBI Datasheet - Page 48

• 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

Un-MARKing a Queue
UN-MARKing a Queue
UN-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
- Un-MARKing can only occur during a Queue switch cycle.
- UN-MARKing a Queue can be accomplished by either switching to
- Note only 1 queue can be marked at any given time.
- The MARK can NOT be moved location to location within the queue.
the same queue or switching to another queue.
Read Queue UN-MARK
Write Queue UN-MARK
1
A
1
A
RCLK
RADEN
WCLK
WADEN
RADEN
WADEN
Figure 29. UN-MARKing a Queue - Read Queue UN-MARK
Figure 28. UN-MARKing a Queue - Write Queue UN-MARK
B
0
B
0
Read Queue
Select Cycle
Write Queue
Select Cycle
A
A
Selects a Queue and UN-MARK the Queue
This rising edge of
RCLK is the start
This rising edge of
WCLK is the start
Selects a Queue and UN-MARK the Queue
of the
of the
1
1
st
st
cycle
cycle
48
Read Queue
MARK Cycle
Read Port
Write Queue
MARK Cycle
- Un-MARKing can only occur during a Queue switch cycle.
- UN-MARKing a Queue can be accomplished by either switching to the
- Note only 1 queue can be marked at any given time.
- The MARK can NOT be moved location to location within the queue.
B
B
same queue or switching to another queue.
ACTI ON
ACTI ON
COMMERCIAL AND INDUSTRIAL
6724 drw39
6724 drw38
TEMPERATURE RANGES
FEBRUARY 11, 2009