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Bitfields for service flags

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Bit Description

0

supports broadcast

1

supports multicast

2

supports functional/group addressing

3

supports promiscuous mode

4

station address software settable

5

statistics always current

6

supports InitiateDiagnostics

7

supports loopback

8

MAC does primarily ReceiveChain indications instead of ReceiveLookahead indications

9

supports IBM source routing

10

supports MAC reset

11

supports Open/Close adapter

12

supports interrupt request

13

supports source routing bridge

14

supports GDT virtual addresses (OS/2 version)

15

multiple TransferDatas allowed durign a single indication

16

MAC normally sets FrameSize = 0 in ReceiveLookahead

17 - 31

reserved, must be 0