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Block Data Transfer
A hard reset or power-on will put this mode in its default state (disabled).
The send display
(Ee d)
sequence is not affected by the Auto Keyboard Lock mode. However,
the escape sequence which triggers the user-defined function keys
(Ee &f <n)E)
is affected by
this mode, since it is defined to act as though the key selected in the escape sequence is
depressed.
Send Cursor Position Mode
Under certain circumstances, when the. key is used, the current cursor position is required
before the data is transferred. In Send Cursor Position mode, the current cursor position is
supplied to the computer in the form
((Ee &a<xxx)e<yyy)R"
inserted at the start of the data
block. The cursor position
(xxx, yyy)
is in workspace-relative form (refer to Workspace Address-
ing in Section 4, Display Control), and is the same form as that for an absolute cursor sense
status request
(Ee a).
Send Cursor Position mode is valid only when the terminal is in Block mode.
The action of Send Cursor Position mode occurs when the. key (or the
1:1
key when the
Return=Enter
field on the Terminal Configuration menu is set to
YES)
is pressed or when any
user key of type Transmit Only is pressed.
The cursor position sent is that of the cursor before any repositioning is done, regardless of the
entries on the Terminal Configuration menu. The block transfer obeys the usual handshaking
conventions.
Send Cursor Position mode cannot be activated in a Send Display operation (initiated by the
escape sequence
((Ee d").
However, it can be activated for the function key triggering opera-
tion, initiated by the escape sequence
((Ee &f <x)E".
A soft reset will leave Send Cursor Position mode unchanged. A hard reset will set it to its
default (disabled) condition.
This mode is accessible through an escape sequence only. The sequences for enabling and
disabling the mode are as follows:
Ee
& x
c
Enable SCP mode
Ee
&
x
0 C
Disable SCP mode
These escape sequences cannot be combined with other
((Ee &x"
type sequences.
9-21
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