80ksbr200 Integrated Device Technology, 80ksbr200 Datasheet - Page 73

• 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
Port General Control CSR
Port 0 Link Maintenance Request CSR
this register generates a link-request control symbol on the corresponding RIO port interface. Care should be taken when
writing this register that it is only used for hot swap and not for software assisted error recovery (which is not supported).
Note:
Note:
Note:
Name:
Name:
The port general control register contains control register bits applicable to all ports on a processing element.
The port 0 link maintenance request register is accessible both by a local processor and an external device. A write to
28:0
29
30
31
2:0
31:3
Bit
Bit
1.
1.
1.
PORT_GEN_CTRL_CSR
P0_LNK_MAINT_REQ_CSRAddress:
The above register is described in the RIO Specification Part 6, sec. 6.6.2.3
The above register is described in the RIO Specification Part 6, sec. 6.6.2.4
The above register is described in the RIO Specification Part 6, sec. 6.6.2.5
-
DISCOVER
MSTR_EN
HOST
CMD
-
Field Name
Field Name
0
1b0
1b0
1b0
3b000
0
Table 30 Port 0 Link Maintenance Request CSR
Reset
Value
Reset
Value
73 of 172
Address:
Table 29 Port General Control CSR
Reserved.
Discovered:
This device has been located by the processing element responsible
for system configuration.
0b0 - The device has not been previously discovered.
0b1 - The device has been discovered by another processing ele-
ment.
Master Enable:
The master enable bit controls whether or not a device is allowed to
issue requests into the system. If the Master Enable is not set, the
device may only respond to requests.
0b0 - processing element cannot issue requests.
0b1 - processing element can issue requests.
Host:
A host device is a device that is responsible for system exploration,
initialization, and maintenance. Agent or slave devices are typically
initialized by Host devices.
0b0 - agent or slave device.
0b1 - host device.
Command:
LINK_REQUEST command to send. If read, this field returns the last
written value. If written with a value other than 3b011 (reset-device)
or 3b100 (input-status), resulting operation will be undefined, as all
other values are reserved in the RIO spec.
Reserved.
0x00013C
0x000140
Comment
Comment
Advanced Datasheet*
March 19, 2007