CEF32

LA120 Keyboard

This is a keyboard component that uses a DEC LA120  (DecWrite III) keyboard layout.
There is a small alphanumeric display on the keyboard, which is accessed by writing to the keyboard component's memory. Memory address 0 is for the far-right character of the display; address 1 is for the next-to-far-right character; address 2 is for the next character to the left, and so on. There is room for roughly 4 characters on the display.
The keyboard has the following keys:
Key Name
Description
BREAK
CAPS LOCK
CONTROL
HERE IS
LEFT_SHIFT
LINE LOCAL
LOCAL LINE FEED
LOCAL FORM FEED
NKP_0
0 on the numeric keypad.
NKP_1
1 on the numeric keypad.
NKP_2
2 on the numeric keypad.
NKP_3
3 on the numeric keypad.
NKP_4
4 on the numeric keypad.
NKP_5
5 on the numeric keypad.
NKP_6
6 on the numeric keypad.
NKP_7
7 on the numeric keypad.
NKP_8
8 on the numeric keypad.
NKP_9
9 on the numeric keypad.
NKP_.
. on the numeric keypad.
NKP_,
, on the numeric keypad.
NKP_-
- on the numeric keypad.
NKP_ENTER
Enter on the numeric keypad.
PF1
PF2
PF3
PF4
RIGHT_SHIFT
SET-UP
The component also supports the following LEDs:
Name
ALT CHAR SET
CTS
DSR
LED 3
LOCAL
ON LINE
PAPER OUT
SETUP