Texas Instruments Extensa 600 Series - Manual (Page 55)

Using the Internal
Numeric Keypad
2-34
The keyboard has an embedded keypad that
provides the same functions as the discrete
numeric keypad on an AT  enhanced keyboard.
The embedded numeric keypad keys shown in
the following figure generate AT-keypad
characters and functions when pressed in
conjunction with Num Lock, Fn and Shift.
The embedded numeric keypad has two modes
you can enter by toggling Num Lock (Fn+F7) as
signaled by the Num Lock indicator: ON or
OFF.
Num Lock On
When the Num Lock indicator is on, pressing a
key generates the characters shown in the
following figure.
Num Lock On