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CS8920 Datasheet(PDF) 42 Page - Cirrus Logic

Part # CS8920
Description  Ethernet Controller
PDF  66 Pages
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Manufacturer  CIRRUS [Cirrus Logic]
Direct Link  http://www.cirrus.com
Logo CIRRUS - Cirrus Logic

CS8920 Datasheet(HTML) 42 Page - Cirrus Logic

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AN84REV1
42
CS8920 Technical Reference Manual
Wake-up Capable
10
0 = Wake-up not supported, 1=Wake-up supported
Wake-up Configured
9
0 = Not configured for Wake-up, 1 = Configured for Wake-up
Wake-up Enabled
8
0 = Wake-up Disabled, 1 = Wake-up Enabled (default)
DC/DC Converter Polarity
7
0 = Low enable, 1 = High enable (for 10Base-2)
Media Type in Use
6-5
0 = Auto Detect, 1 = 10Base-T, 2 = AUI, 3 = 10Base-2
Reserved
4
Reserved for future use, set to 0
HW Standby
3
0 = HW Standby not supported, 1 = HW Standby supported
10Base-2 Circuitry
2
0 = Not Present, 1 = Present
AUI Circuitry
1
0 = Not Present, 1 = Present
10Base-T Circuitry
0
0 = Not Present, 1 = Present
25h
Reserved
15-0
Reserved for future use, set to 0
26h
Reserved
15-0
Reserved for future use, set to 0
27h
Mfg Date
Year
15-9
e.g. 1011111b = 1995, 0000001b = 2001
Month
8-5
e.g. 1b = Jan, 1100b = Dec
Day
4-0
e.g. 1b = 1, 11111b = 31
28-2Ah
IEEE Individual Addr
47-0
Copy of words at 1C-1Eh
2Bh
Reserved
15-0
Reserved for future use, set to 0
2Ch
Reserved
15-0
Reserved for future use, set to 0
2Dh
Reserved
15-0
Reserved for future use, set to 0
2Eh
Reserved
15-0
Reserved for future use, set to 0
2Fh
Checksum
15-0
Word-wide checksum of words 1Ch to 2Fh (zero sum)
30h
EISA ID (low word)
15-0
EISA ID bits[ 7-0], EISA ID bits[15-8]
31h
EISA ID (high word)
15-0
EISA ID bits[ 23-16], EISA ID bits[31-24]
32h
Serial No (low word)
15-0
32-bit OEM assigned serial number, bits[15-8], bits[7-0]
33h
Serial No (high word)
15-0
32-bit OEM assigned serial number, bits[31-24], bits[23-16]
34h
Serial ID Checksum
Marker Byte - 0Ah
15-8
0Ah in high byte of checksum - start of PnP resources
LFSR Checksum
7-0
8-bit LFSR checksum of words 30h to 33h
Table 3.2. Format of EEPROM the Driver Configuration Block (cont.)



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