SMSC COM20020 Bedienungsanleitung PDF herunterladen (Seite 34)

34

SID

DID

COUNT = 256-N

NOT USED

DATA BYTE 1

DATA BYTE 2

DATA BYTE N-1

DATA BYTE N

NOT USED

SID

DID

0

COUNT = 512-N

NOT USED

DATA BYTE 1

DATA BYTE 2

DATA BYTE N-1

DATA BYTE N

SHORT PACKET

FORMAT

LONG PACKET

FORMAT

ADDRESS ADDRESS

0

1

2

COUNT

255

511

N = DATA PACKET LENGTH

SID = SOURCE ID

DID = DESTINATION ID

(DID = 0 FOR BROADCASTS)

0

1

2

COUNT

511

3

FIGURE 8 - RAM BUFFER PACKET CONFIGURATION

1 2 ... 29 30 31 32 33 34 35 36 37 38 39 ... 59 60

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