IDT72P51559L6BBI8 IDT, Integrated Device Technology Inc, IDT72P51559L6BBI8 Datasheet - Page 37

• Manufacturer Part Number: IDT72P51559L6BBI8
• Description: IC FLOW CTRL 36BIT 256-BGA
• Manufacturer: IDT, Integrated Device Technology Inc

Specifications of IDT72P51559L6BBI8

• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 72P51559L6BBI8

MARK Operational Notes:
In FIFO Mode
Write Port
IDT72P51539/72P51549/72P51559/72P51569 1.8V, MQ FLOW-CONTROL DEVICES
(32 QUEUES) 36 BIT WIDE CONFIGURATION 589, 824, 1,179,648, 2,359,296, and 4,718,592
- MARKing can only occur during a Queue switch cycle
- The entire Queue is MARKed at a time.
- In IDT Standard/FWFT mode, MARK is used to mark the first location
- In IDT Standard/FWFT mode the MARK can NOT be moved within the
of the Queue.
queue.
Read Queue MARK
Write Queue MARK
1
1
A
WCLK
WADEN
1
1
A
RCLK
RADEN
Figure 20. MARKing a Queue in FIFO Mode - Read Queue MARK
RADEN
WADEN
Figure 19. MARKing a Queue in FIFO Mode - 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
37
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 in Standard /FWFT
- In IDT Standard mode the MARK can NOT be moved location to location
Selects a Queue
B
Selects a Queue
B
mode.
within the queue.
ACTI ON
ACTI ON
COMMERCIAL AND INDUSTRIAL
6715 drw36
6715 drw37
TEMPERATURE RANGES
FEBRUARY 13, 2009