User`s manual

Software Manual • EKF Intelligent I/O Controller Family On CompactPCI
- 90 -
EKF Elektronik GmbH * Philipp-Reis-Str. 4 * D-59065 HAMM (Germany)
Tel. [phone] * Fax. [phone] * E-Mail [e-mail] * Internet http://www.ekf.de
Setup Flow Control: CMDIMR_SET_HANDFLOW
Description:
This command is used to setup the flow control values of a port specified
by the port identifier.
Command Code:
24.
Command Data:
Size of the flow control parameter structure in bytes.
Parameters:
The flow control parameter structure EKF16550_HANDFLOW is passed
in the inbound parameter area.
Data:
None.
Command Word:
0x0Y18 AAAA
Flags Port ID Command Command Data
E
R
R
R
P
L
C
P
L
U
F
ID
3
ID
2
ID
1
ID
0
C
7
C
6
C
5
C
4
C
3
C
2
C
1
C
0
D
15
D
14
D
13
D
12
D
11
D
10
D
09
D
08
D
07
D
06
D
05
D
04
D
03
D
02
D
01
D0
0
0000YYYY00011000AAAAAAAAAAAAAAAA
31 28 27 24 23 16 15 8 7 0
Reply:
Flags Port ID Command Command Data
E
R
R
R
P
L
C
P
L
U
F
ID
3
ID
2
ID
1
ID
0
C
7
C
6
C
5
C
4
C
3
C
2
C
1
C
0
D
15
D
14
D
13
D
12
D
11
D
10
D
09
D
08
D
07
D
06
D
05
D
04
D
03
D
02
D
01
D0
0
X110YYYY00011000AAAAAAAAAAAAAAAA
31 28 27 24 23 16 15 8 7 0
The controller returns with the RPL and CPL flags set.
On error the RPL, CPL and ERR flags are set and an error code is
passed in bits 15:00 of the reply word.
Notes:
See section “
EKF16550_HANDFLOW
” for a description of the flow
control parameter structure.
The flow control settings chosen by this command are retained across
openings and closings.
This command is acceptable for serial ports only.
If the EKF16550_ERROR_ABORT option is enabled in the member
ControlHandShake of the flow control parameter structure an error
message is sent to the host if at least one error condition exists for the
port. The error message has the following appearance: