Cirrus Logic CRYSTAL LAN CS890 Technical Reference Manual page 59

Byte Offset Description
00h Header
08h Individual Address
0Ah Individual Address
0Ch Individual Address
0Eh ISA Configuration Flags
10h Packet Page Base
12h Boot PROM Base
14h Boot PROM Mask
16h Transmission Control
18h Adapter Configuration
1Ah EEPROM Revision
1Ch Reserved
1Eh Mfg Date
20h-25h IEEE Individual Addr
26h Reserved
28h Reserved
2Ah Reserved
2Ch Reserved
2Eh Checksum
30h EISA ID (high word)
32h EISA ID (low word)
34h Serial Number
36h Serial Number
38h LDSR Checksum
Table 3.3. Format of Driver Configuration Block in BIOS space
AN83REV1
CS8900 Technical Reference Manual
Function
8 bytes = "$CS89XX$"
IEEE individual address. Same format as word 1Ch in Table 3.2
IEEE individual address. Same format as word 1Dh in Table 3.2
IEEE individual address. Same format as word 1Eh in Table 3.2
Same format as word 1Fh in Table 3.2
12 MSBs of 24-bit address (lower 12 bits assumed = 0)
12 MSBs of 24-bit address (lower 12 bits assumed = 0)
12 MSBs of 24-bit addr mask (lower 12 bits assumed = 0)
Same format as word 23h in Table 3.2
Same format as word 24h in Table 3.2
Same format as word 25h in Table 3.2
Reserved for future use, set to 0
Same format as word 27h in Table 3.2
Copy of 6 bytes at offset 08h
Reserved for future use, set to 0
Reserved for future use, set to 0
Reserved for future use, set to 0
Reserved for future use, set to 0
Word-wide checksum of words 08h to 2Fh (zero sum)
Same format as word 30h in Table 3.2
Same format as word 31h in Table 3.2
Same format as word 32h in Table 3.2
Same format as word 33h in Table 3.2
Same format as word 34h in Table 3.2
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