IDT72P51559L6BBI8 IDT, Integrated Device Technology Inc, IDT72P51559L6BBI8 Datasheet - Page 22

• 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

TABLE 1 — DEVICE PROGRAMMING MODE COMPARISON
FUNCTIONAL DESCRIPTION
MASTER RESET
to HIGH. During a master reset all internal multi-queue device setup and control
registers are initialized and require programming either serially by the user via
the serial port, or via parallel programming or by using the default settings. Refer
to Figure 4, Device Programming Hierarchy for the programming hierarchy
structure. During a master reset the state of the following inputs determine the
functionality of the part, these pins should be held HIGH or LOW.
TABLE 2 — SETTING THE QUEUE PROGRAMMING MODE DURING MASTER RESET
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
Programmable Parameter Serial Programming
Number of Queues
Queue Depth
PAE
PAE
PAE / PAF
Bus Matching
I/O voltage
PAE
PAE
A Master Reset is performed by toggling the MRS input from HIGH to LOW
PKT – Packet Mode
FM – Flag bus Mode
BM [3:0] – Bus Matching options
MAST – Master Device
ID0, 1, 2 – Device ID
PAF
PAF
PAF
PAF Offset Value
Default mode
(DFM)
MRS
QSEL0
QSEL1
Any number from 1 to 32
Each queue depth can be
individualized
Programmable to any value
Any combination of x9 or x18 or x36 can Any combination of x9 or x18 or x36
be selected using the BM[3:0] bits.
LVTTL, eHSTL, HSTL
MRS
Default
(DFM)
Mode
See Table 2 for definition of value
See Table 2 for definition of value
DFM = LOW for Serial Programming mode
0
0
0
0
1
1
1
1
QSEL 1 QSEL 0
0
0
1
1
0
0
1
1
Figure 3. Reference Signals
0
1
0
1
0
1
0
1
Parallel Programming
Any number from 1 to 32
The total memory is evenly divided
across the queues
Fixed value
can be selected using the BM[3:0] bits. be selected using the BM[3:0] bits
LVTTL, eHSTL, HSTL
RESERVED
RESERVED
RESERVED
Serial programming mode
Enables the user to program the number
of Queues using the Write Address bus
Enables the user to program the number
of Queues using the Read Address bus
Selects 16 Queue
Selects 32 Queue
Queue Programming Method
22
serially or via the default method before any read/write operations can begin.
PROGRAMMING MODE CAPTURED
DEFAULT) are captured. Once the programming mode signals are captured
(latched), refer to Table 1 for details. It will then require a number of clock cycles
for the device to complete the configuration. Configuration completion is indicated
when the SENO signal transitions from high to low. The configuration completion
indication is consistent with the previous MQ device.
DFM – Programming mode, serial or default
DF – Offset value for PAE and PAF
Once a master reset has taken place, the device must be programmed either
See Figure 37, Master Reset for relevant timing.
On the rising of /MRS the programming mode signals (QSEL 0 &1,
6715 drw07
Fixed value
Any combination of x9, x18, or x36 can
Default Programming
16 or 32
The total memory is evenly divided
across the queues
LVTTL, eHSTL, HSTL
COMMERCIAL AND INDUSTRIAL
TEMPERATURE RANGES
6715 drw06
FEBRUARY 13, 2009