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DP83255AVF Datasheet(PDF) 30 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part # DP83255AVF
Description  PLAYER Device (FDDI Physical Layer Controller)
PDF  96 Pages
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

DP83255AVF Datasheet(HTML) 30 Page - National Semiconductor (TI)

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50 Registers (Continued)
INJECTION SYMBOL REGISTER A (ISRA)
The Injection Symbol Register A along with Injection Symbol Register B contains the programmable value (already in 5B code)
that will replace the data symbol pairs
The One Shot mode ISRA and ISRB are injected n bytes after the next JK where n is the programmed value of the Injection
Threshold Register In the Periodic mode ISRA and ISRB are injected every nth symbol pair In the Continuous mode all data
symbols are replaced with ISRA and ISRB
ACCESS RULES
ADDRESS
READ
WRITE
06h
Always
Always
D7
D6
D5
D4
D3
D2
D1
D0
RES
RES
RES
IJS4
IJS3
IJS2
IJS1
IJS0
Bit
Symbol
Description
D0
IJS0
INJECTION THRESHOLD BIT k0l
Least significant bit (LSB) of Injection
Symbol Register A
D1–3
IJS1–3
INJECTION THRESHOLD BIT k1–3l
Intermediate bits of Injection Symbol
Register A
D4
IJS4
INJECTION THRESHOLD BIT k4l
Most significant bit (MSB) of Injection
Symbol Register A
D5
RES
RESERVED
Reserved for future use
Note
Users are discouraged from using this bit The reserved bit is set to 1 during the reset
process It may be set or cleared without any effects to the functionality of the PLAYER
device
D6
RES
RESERVED
Reserved for future use
Note
Users are discouraged from using this bit The reserved bit is set to 1 during the reset
process It may be set or cleared without any effects to the functionality of the PLAYER
device
D7
RES
RESERVED
Reserved for future use
Note
Users are discouraged from using this bit The reserved bit is set to 1 during the reset
process It may be set or cleared without any effects to the functionality of the PLAYER
device
30



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