MK5027(2003) 데이터 시트보기 (PDF) - STMicroelectronics
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MK5027 Datasheet PDF : 19 Pages
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MK5027
Figure 4: MK5027 Buffer Management.
CSR 2, CSR3
POINTER TO
INITIALIZATION BLOCK
INITIALIZATION BLOCK
MODE
FRAME ADDRESS
FIELDS
TIMER VALUES
RX DESCRIPTOR
POINTER
TX DESCRIPTOR
POINTER
XID/TEST TRANSMIT
DESCRIPTOR POINTER
XID/TEST RECEIVE
DESCRIPTOR POINTER
STATUS
BUFFER ADDRESS
ERROR COUNTERS
STATUS BUFFER
XID/TEST
RECEIVE BUFFER
XID/TEST
TRANSMIT BUFFER
8/19
RECEIVER DESCRIPTOR RINGS
DESCRIPTOR 0
BUFFER STATUS
BUFFER ADDRESS
BUFFER SIZE
BUFFER MSG COUNT
DESCRIPTOR 1
DESCRIPTOR M
TRANSMIT DESCRIPTOR RINGS
DESCRIPTOR 0
BUFFER STATUS
BUFFER ADDRESS
BUFFER SIZE
BUFFER MSG COUNT
DESCRIPTOR 1
DESCRIPTOR N
RECEIVE BUFFER
BUFFER
0
BUFFER
1
BUFFER
M
TRANSMIT BUFFER
BUFFER
0
BUFFER
1
BUFFER
N
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