MULTIPROTOCOL SERIAL COMMUNICATIONS INTERFACE (SCI-M)
MULTIPROTOCOL SERIAL COMMUNICATIONS INTERFACE (Cont’d)
Table 48. SCI-M Interrupt Vectors
Interrupt Source
Vector Address
Transmitter Buffer or Shift Register Empty
Transmit DMA end of Block
xxx x110
Received Data Pending
Receive DMA end of Block
xxxx x100
Break Detector
Address Word Match
xxxx x010
xxxx x000
Receiver Error
Figure 116. SCI-M Interrupts: Example of Typical Usage
ADDRESS AFTER BREAK CONDITION
BREAK
DATA
DATA
ADDRESS
NO MATCH
DATA
BREAK
ADDRESS
MATCH
DATA
DATA
DATA
INTERRUPT
DATA
INTERRUPT
BREAK
INTERRUPT
BREAK
INTERRUPT
DATA
INTERRUPT
ADDRESS
INTERRUPT
ADDRESS WORD MARKED BY D9=1
DATA
DATA
ADDRESS
NO MATCH
DATA
DATA
DATA
ADDRESS
MATCH
DATA
ADDRESS
INTERRUPT
INTERRUPT
DATA
DATA
INTERRUPT
INTERRUPT
CHARACTER SEARCH MODE
DATA MATCH
DATA
DATA
DATA
DATA
DATA
INTERRUPT
DATA
INTERRUPT
CHAR MATCH
INTERRUPT
DATA
INTERRUPT
DATA
INTERRUPT
DATA
INTERRUPT
D9 ACTING AS DATA CONTROL WITH SEPARATE INTERRUPT
DATA
DATA
DATA
DATA
D9=1
DATA
DATA
INTERRUPT
INTERRUPT
D9=1
INTERRUPT
DATA
INTERRUPT
VA00270
DATA
INTERRUPT
DATA
DATA
INTERRUPT
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STMICROELECTRONICS [ ST ]
