SERCON410B Datasheet, PDF (31/34 Pages) STMicroelectronics – SERCOS INTERFACE CONTROLLER

SERCON410B
DATA STRUCTURES WITHIN THE RAM (Continued)
For master mode (SCMASTER = 1) the control words are coded as follows:
Index
0
1
2
3
4
Bit
0
1
2
3-5
6
7
8-9
10-11
12
13
14
15
0
1
2
3
4-6
7
8-9
10-15
0-7
8-15
0-7
8-15
0-7
8
9
10
11
12
13-15
Name
HS_MDT
L/S_MDT
END_MDT
ELEM_MDT
SETEND
M_BUSY
NINFO_WRITE
INT_ERR
INT_END_WRBUF
INT_END_RDBUF
HS_AT
BUSY_AT
ERR_AT
CMD_AT
RECERR
NINFO_READ
WRDATPT
WRDATLAST
RDDATPT
RDDATLAST
ERR_CNT
BUSY_CNT
INT_SC_ERR
INT_HS_TIMEOUT
INT_BUSY_TIMEOUT
INT_CMD
Function
Handshake-bit in MDT
Read/write in MDT
End in MDT
Data element type in MDT
END_MDT is to be set
Service container waits for interaction of
microprocessor (M_BUSY = 1)
Number of info words in write buffer (1 to 4)
(Not used)
Slave reports error
End of write buffer is reached
End of read buffer is reached
(Not used)
Handshake bit in AT
Busy bit in AT
Error bit in AT
Command modification bit in AT
(Not used)
Last transmission was correct (0) or errorneous (1)
Number of info words in read buffer (1 to 4)
(Not used)
Pointer to present position in write buffer
Pointer to last position in write buffer
Pointer to present position in read buffer
Pointer to last position in read buffer
Error counter
Error counts differences of handshake (0) or BUSY cycles (1)
Interrupt due to protocol error
Interrupt due to handshake timeout
Interrupt BUSY timeout
Slave has set command modification bit
(Not used)
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