IBM 4840-563 System Reference Manual page 58

Purpose:
Line feed (0A) <LF>
Purpose:
The display behavior is determined by the state of the display control mode as follows:.
Normal Display Control Mode (DC1)
The cursor is moved to the same position in the complementary line. In this mode, a line
feed command stops the scrolling alphanumeric message if the cursor is on the top line
when this command is sent.
Vertical Scroll Display Control Mode (DC2)
If the cursor is on the top line, it is moved to the complementary position on the bottom line. If
the cursor position is on the bottom line, all characters on that line are moved to the top line,
the bottom line is cleared, and the cursor position is unchanged. This command always stops
the scrolling alphanumeric message.
Carriage return (0D) <CR>
Purpose:
Test (0F) <SI>
Purpose:
SurePOS 500 Model XX3 Technical Reference, v 1.3
09
Increments the cursor position by one. No characters are erased. This
command stops the scrolling message if the cursor position is on the top line
when the command is sent. At the end of a line, the display behavior is
determined by the state of the display control mode as follows:.
Normal Display Control Mode (DC1)
If the cursor is at the upper right position, it is moved to the lower left
position. If the cursor is at the lower right position, it is moved to the
upper left position.
Vertical Scroll Display Control Mode (DC2)
If the cursor is at the upper right position, it is moved to the lower left
position. If the cursor is at the lower right position, the characters
displayed on the bottom line are moved to the top line, the bottom line
is cleared, and the cursor is moved to the lower left position.
0A
0D
Causes the cursor to move to the leftmost position of the current line. This
command stops the scrolling alphanumeric message if the cursor position is
on the top line when this command is sent.
0F
Causes the first 40 characters in the currently selected character set to be
displayed once. At the end of the test, a test pattern is written that turns all
pixels ON. At the end of the test, the display is cleared and is reset to the
power-on state as described at "Reset (1F) <US>" on page 55.
81
Page 58 of