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DP83953 Datasheet(PDF) 39 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part # DP83953
Description  Repeater Interface Controller with Security Features, Internal Drivers and Integrated Filters
PDF  90 Pages
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

DP83953 Datasheet(HTML) 39 Page - National Semiconductor (TI)

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5.0 HUB MANAGEMENT SUPPORT (Continued)
39
www.national.com
Table 6. Hub Management Status Field
Packet status Register
PSR
D7
D6
D5
D4
D3
D2
D1
D0
PSR(0)
A5
A4
A3
A2
A1
A0
PCOMPD
resv
PSR(1)
CRCER
FAE
COL
CLN
PA3
PA2
PA1
PA0
PSR(2)
SE
OWC
NSFD
PLER
ELBER
JAB
CBT9
CBT8
PSR(3)
Collision Bit Timer
CBT7
CBT6
CBT5
CBT4
CBT3
CBT2
CBT1
CBT0
PSR(4)
Lower Repeat Byte Count
RBY7
RBY6
RBY5
RBY4
RBY3
RBY2
RBY1
RBY0
PSR(5)
Upper Repeat Byte Count
Note 2
MPS=0
----------
MPS=1
RBY15
------------
resv
RBY14
-----------
resv
RBY13
-----------
resv
RBY12
-----------
SAM
RBY11
-----------
RUNT
RBY10
-----------
RBY10
RBY9
----------
RBY9
RBY8
-----------
RBY8
PSR(6)
Inter Frame Gap Bit Timer
IBT7
IBT6
IBT5
IBT4
IBT3
IBT2
IBT1
IBT0
Note 1: These registers may only be reliably accessed via the management interface. Due to the nature of these registers they may not be accessed (read
or write cycles) via the processor interface.
Note 2: When MPS (Modify Packet Status) bit in the Global Security Register is:
MPS=0, Do not modify Packet Status Register 5. The RIC2A PSR5 is the same as the RIC PSR5.
MPS=1, The PSR5 register is modified in the RIC2A.
Figure 14.
Management Bus Packet Status Register TIming



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