CT2554 데이터 시트보기 (PDF) - Aeroflex Corporation
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CT2554 Datasheet PDF : 36 Pages
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CONFIGURATION
REGISTER
15 13
0
STACK
POINTERS
*
CURRENT
AREA B/A
MESSAGE
COUNTER
*
DESCRIPTOR **
STACKS
BLOCK STATUS WORD
TIME TAG WORD
RESERVED
MESSAGE
BLOCK ADDR
DATA **
BLOCKS
DATA BLOCK
DATA BLOCK
* Note:
STACK POINTERS and MESSAGE COUNTERS are switched via the
CONFIGURATION REGISTER under external CPU control.
** Note:
DESCRIPTOR STACKS and DATA BLOCKS have 256 word boundries which
should be observed.
Figure 6 – Use of Descriptor Stack – BC Mode
CONFIGURATION
REGISTER
15 13
0
STACK
POINTERS
*
DESCRIPTOR **
STACKS
LOOK-UP TABLE
(DATA BLOCK ADDR)
*
DATA **
BLOCKS
CURRENT
AREA B/A
BLOCK STATUS WORD
TIME TAG WORD
RESERVED
RECEIVED COMMAND
WORD
LOOK-UP
TABLE ADDR
DATA BLOCK
DATA BLOCK
* Note:
STACK POINTERS and LOOK-UP TABLE are switched via the
CONFIGURATION REGISTER under external CPU control.
** Note:
DESCRIPTOR STACKS and DATA BLOCKS have 256 word boundries which
should be observed.
Aeroflex Circuit Technology
Figure 7 – Use of Descriptor Stack – RTU Mode
7
SCDCT2553 REV B 8/6/99 Plainview NY (516) 694-6700
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