Released
Datasheet
PM73487 QRT
PMC-Sierra, Inc.
PMC-980618
Issue 3
622 Mbps ATM Traffic Management Device
(Continued)
Field (Bits)
Description
UTOPIA_2
(0)
1
0
The interface is in UTOPIA Level 2 mode.
The interface is in UTOPIA Level 1 mode.
Resets to 0.
7.2.12 UT_PRIORITY
The UTOPIA interface provides at the very least, 2-level priority assignment scheme.
UT_PRIORITY configures each UTOPIA interface to belong to either the high bandwidth or low
bandwidth category. PHY devices with UT_PRIORITY = 1 are serviced with strict priority over
PHY devices with UT_PRIORITY = 0. PHY devices within each bandwidth category are served
lowest numbered PHY device address first. This register is configurable independent of software
reset and can be changed during cell flow.
Address: 11h (44h byte)
Type: Read/Write
Format: Refer to the following table.
Field (Bits)
Description
Not used
(31)
Write with a 0 to maintain software compatibility with future versions. PHY devices16-
30 are defined to be at low priority.
UT_PRIORITY
(30)
1
0
Service PHY device 30 at high priority.
Service PHY device 30 at low priority.
UT_PRIORITY
(29)
1
0
Service PHY device 29 at high priority.
Service PHY device 29 at low priority.
.
.
.
.
.
.
UT_PRIORITY
(0)
1
0
Service PHY device 0 at high priority.
Service PHY device 0 at low priority.
119
PMC [ PMC-SIERRA, INC ]
