IDT80KSBR201BR8 IDT, Integrated Device Technology Inc, IDT80KSBR201BR8 Datasheet - Page 6

• Manufacturer Part Number: IDT80KSBR201BR8
• Description: IC FLOW CTRL SRL BUFFER 484CBGA
• Manufacturer: IDT, Integrated Device Technology Inc

Specifications of IDT80KSBR201BR8

• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 80KSBR201BR8

„2007 Integrated Device Technology, Inc. All rights reserved.
IDT
Notes
2.4 sRIO Translation
When going from sRIO to a lite protocol, the sRIO port will pass data into memory, which then may be passed out the lite
port. In the reverse direction, the lite port passes data into the SerB. An sRIO command can then be formed to issue a
command with the data. The commands are limited to ones that can be developed by the "case scenarios" within the SerB.
up by the SerB, interpreted by the SerB, and passed directly to the FPGA. Meanwhile, the SerB shall return a receipt to the
sRIO device indicating the packet was received. The FPGA may respond with a symbol, which will be received by the
SerB, acknowledging receipt. The SerB would connect directly to the sRIO port as an end-point, or as a bus master. All link
negotiations, retransmission requests, and status requests shall be maintained at the sRIO interface without requiring
intervention by S-Port 2.
appropriate command/data to the sRIO Device. The response packets will be handled locally at the interfaces, along with
any retransmissions needed. The FPGA only needs to understand the codes for the commands it will be passing.
2.4.1 Parallel to Serial Translation
connected to an inexpensive FPGA and providing a serial port access or PPS access.
The address bits on P-Port is used to select sRIO commands and destination IDs, along with the queue selections.
between S-Port 1 and S-Port 2.
The translation capabilities of the SerB are primarily through the ability to read and write memory in both protocols.
An example of translation is shown in
The FPGA could also be the initiator, sending a packet to the SerB, which interprets the command and forwards the
The SerB has the ability to translate from sRIO or the lite protocol to a parallel port. This allows the device to be
In this application, the P-Port activities are identical to the S-Port 2 activities of the previously discussed translations.
In addition, the SerB may be used as a passive memory between S-Port 1 and P-Port, the same as described earlier
Speed
Speed
Serial
Serial
Lines
Lines
High
High
sRIO
S-Port 1
Figure
6 of 7
Figure 7. Parallel to Serial Translator
7. The sRIO device may initiate a command. That command will be picked
Queue 0
Queue 4
Queue 5
Queue 6
Queue 7
Queue 1
Queue 2
Queue 3
P-Port
Data
Data
CNTL
Parallel
Port
November 26, 2007
I/O
Product Brief