전자부품 반도체 검색엔진( 무료 PDF 다운로드 ) - 데이터시트뱅크
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MK50H28N25/XX 데이터 시트보기 (PDF) - STMicroelectronics
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MK50H28N25/XX
MULTI LOGICAL LINK FRAME RELAY CONTROLLER
STMicroelectronics
MK50H28N25/XX Datasheet PDF : 64 Pages
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MK50H28
Figure 3:
MK50H28 Memory Management Structure
CSR2, CSR3
PTR TO INIT
INIT BLOCK
MODE
TIMER VALUES
PTR TO CT
PTR TO ALT
PTR TO TINT DR
PTR TO RINT DR
PTR TO STATUS
BUFFER
LMI ERROR
COUNTERS
ADDRESS
LOOKUP
TABLE
ACT. CHNL
(DLCI 0
to
DLCI 1024
or
DLCI 8192)
CONTEXT TABLE
(1 ENTRY/ACT. CHNL)
DESC RING PTRS
CONG STATISTICS
DLCI / ADDRESS
ACTIVE CHNL. 0
DESC RING PTRS
CONG STATISTIC S
DLCI / ADDRESS
ACTIVE CHNL. 1
DESC RING PTRS
CONG STATISTICS
DLCI / ADDRESS
ACTIVE CHNL. N
STATUS
BUFFER
XMIT RING0
DESC 0
BUFF ADDRESS
BUFF SIZE
BUFF MSG CNT
DESC 1
DATA
BUFFERS
BUFF
0
BUFF
1
DESC M
BUFF
M
XMIT RING N
DESC 0
BUFF ADDRESS
BUFF SIZE
BUFF MSG CNT
DESC 1
BUFF
0
BUFF
1
PRIORITY DLCI
BLOCK
TX INTERRUP T RING
DESC 0
TX CT Address
Current TX Desc
Service Bit
DESC 1
DESC 127
RX INTERRUPT RING
DESC 0
RX CT Address
Current RX Desc
Service Bit
DESC 1
DESC 127
DESC N
BUFF
N
RX RING 0
DESC 0
BUFF ADDRESS
BUFF SIZE
BUFF MSG CNT
DESC 1
DATA
BUFFERS
BUFF
0
BUFF
1
DESC X
BUFF
X
RX RING N
DESC 0
BUFF ADDRESS
BUFF SIZE
BUFF MSG CNT
DESC 1
DATA
BUFFERS
BUFF
0
BUFF
1
DESC Y
BUFF
Y
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