Format of MAC Service-Specific Characteristics Table |
| Offset | Size | Description |
|---|---|---|
|
00h |
WORD |
length of table in bytes |
|
02h |
16 BYTEs |
ASCIZ MAC type name, "802.3", "802.4", "802.5", "802.6", "DIX", "DIX+802.3", "APPLETALK", "ARCNET", "FDDI", "SDLC", "BSC", "HDLC", or "ISDN" |
|
12h |
WORD |
length of station addresses in bytes |
|
14h |
16 BYTEs |
permanent station address |
|
24h |
16 BYTEs |
current station address |
|
34h |
DWORD |
current functional adapter address (00000000h if none) |
|
38h |
DWORD |
pointer to multicast address list |
|
3Ch |
DWORD |
link speed in bits/sec |
|
40h |
DWORD |
service flags (see #01439) |
|
44h |
WORD |
maximum frame size which may be both sent and received |
|
46h |
DWORD |
total transmit buffer capacity in bytes |
|
4Ah |
WORD |
transmit buffer allocation block size in bytes |
|
4Ch |
DWORD |
total receive buffer capacity in bytes |
|
50h |
WORD |
receive buffer allocation block size in bytes |
|
52h |
3 BYTEs |
IEEE vendor code |
|
55h |
BYTE |
vendor adapter code |
|
56h |
DWORD |
pointer to ASCIZ vendor adapter description |
|
5Ah |
WORD |
IRQ used by adapter |
|
5Ch |
WORD |
transmit queue depth |
|
5Eh |
WORD |
maximum supported number of data blocks in buffer descriptors |
|
60h |
N BYTEs |
vendor-specific info |
|
See Also: |