80ksbr200 Integrated Device Technology, 80ksbr200 Datasheet - Page 91

• Manufacturer Part Number: 80ksbr200
• Description: Srio Serial Buffer Flow-control Device
• Manufacturer: Integrated Device Technology

„2005 Integrated Device Technology, Inc. All rights reserved. Advanced Datasheet for informational purposes only. Product specifications subject to change without notice.NOT AN OFFER FOR SALE The information presented herein is subject to a
Non-Disclosure Agreement (NDA) and is for planning purposes only. Nothing contained in this presentation, whether verbal or written, is intended as, or shall have the effect of, a sale or an offer for sale that creates a contractual power of acceptance.
IDT 80KSBR200
Notes
8.2.5 Lost Packet Replacement Register
8.2.6 Source and Destination IDs
any of the access ports. sRIO may program these registers using the overall device destination ID, since direct sRIO
access to the queue may otherwise not be available. In addition, a queue input or output may be programmed with either
an 8 or 16 bit destination ID.
8.2.7 Program Almost Empty / Almost Full Register
anywhere with an accuracy of 1/256
proportional indications and not accurate size counts. The PAE flag is the distance from empty and the PAF flag is the
distance from Full. Both may be placed anywhere in the memory, but cannot overlap to where PAF + PAE > 0FFh.
Note:
Note:
Name:
Name:
The sRIO source and destination IDs must be programmed to access the queue. These registers are read/write from
The PAE and PAF flags are each eight bits long for each of the queues. The eight bits allow the flags to be placed
These registers may be read or written from any of the sources.
Bit
0
31:1
Bit
7:0
15:8
23:16
31:24
0)
7:0)
15:8)
23:16)
31:24)
LOST_PKT_REP_REG
SRC_DEST_ID_REG
Field Name
REP_LOST_PKT
-
Field Name
SRC_ID_8
SRC_ID_16
DEST_ID_8
DEST_ID_16
If a single packet is lost, it will be replaced by a dummy packet to avoid breaking the memory addresses.
If more than one packet is lost, an error will be generated instead of replacing. If this bit is set to 0, the lost
packet is ignored.
This is the queue source ID for sRIO protocol.
This is the 16 bit extension for sRIO. These bits will be compared if the queue input is enabled for 16 bits.
This is the queue destination ID for sRIO.
This is the 16 bit extension for sRIO on the destination ID. These bits will be appended to the sRIO
header if the queue output is enabled for 16 bits.
Type
RW
Type
RW
RW
RW
RW
th
of the total queue size. Since the queue size is programmable, PAF and PAE are
Table 56 Source and Destination ID Register
Table 55 Lost Packet Replacement Register
91 of 172
Address:
Address:
Reset
Value
1b0
0
Reset
Value
8h0
8h0
8h0
8h0
0x18030
0x18034
Comment
Queue 0 Replace Lost Packets:
0 = No, 1 = Yes
Reserved
Comment
Source ID is 8 bits:
Defaults to base queue number
Source ID is 16 bits:
Defaults to zero
Destination ID is 8 bits:
Defaults to base queue number
Destination ID is 16 bits:
Defaults to zero
Advanced Datasheet*
March 19, 2007