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LAN9250 Datasheet(PDF) 189 Page - Microchip Technology

Part # LAN9250
Description  Integrated Ethernet PHY with HP Auto-MDIX
PDF  421 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

LAN9250 Datasheet(HTML) 189 Page - Microchip Technology

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 2015 Microchip Technology Inc.
DS00001913A-page 189
LAN9250
Note:
Backpressure Duration is timed from when the RX FIFO reaches the level set in Automatic Flow Control
High Level (AFC_HI), regardless when actual backpressure occurs.
TABLE 11-16: BACKPRESSURE DURATION BIT MAPPING
Backpressure Duration
[7:4]
100Mbs Mode
10Mbs Mode
0h
5 us
7.2 us
1h
10 us
12.2 us
2h
15 us
17.2 us
3h
25 us
27.2 us
4h
50 us
52.2 us
5h
100 us
102.2 us
6h
150 us
152.2 us
7h
200 us
202.2 us
8h
250 us
252.2 us
9h
300 us
302.2 us
Ah
350 us
352.2 us
Bh
400 us
402.2 us
Ch
450 us
452.2 us
Dh
500 us
502.2 us
Eh
550 us
552.2 us
Fh
600 us
602.2 us



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