Motorola M68HC08 Designer Reference Manual page 20

USB and PS/2 Multimedia Keyboard Interface
1.5.9 PS/2 Scan Codes
Designer Reference Manual
20
Freescale Semiconductor, Inc.
There are three sets of scan codes (code 1, 2, and 3). Most PCs support
scan code set 2, hence this is the only scan code the firmware supports.
Make code or break code is sent when any key is pressed or released.
While a key is pressed, its make code is sent out repeatedly and the rate
depends on the typematic repeat value.
In addition to the IBM standard, Microsoft has published standards for
the Windows keys, Power Management keys (sleep, wake, and power),
and the Audio Control keys.
Table 1-4. Scan codes supported by Windows 98, ME, and 2000
Description
Left Windows
Right Windows
Applications
Power
Sleep
Wake
Table 1-5. Scan codes supported by Windows ME and 2000
Description
Scan next track
Scan previous track
Stop
Play/Pause
Mute
Volume increase
Volume decrease
AL Email Reader
AC search
AC Home
AC Forward
AC Stop
AC Reflesh
AC Bookmarks
USB and PS/2 Multimedia Keyboard Interface
For More Information On This Product,
Go to: www.freescale.com
Make Code Break Code
$E0, $1F $E0, $F0, $1F
$E0, $27 $E0, $F0, $27
$E0, $2F $E0, $F0, $2F
$E0, $37 $E0, $F0, $37
$E0, $3F $E0, $F0, $3F
$E0, $5E $E0, $F0, $5E
Make Code Break Code
$E0, $4D $E0, $F0, $4D
$E0, $15 $E0, $F0, $15
$E0, $3B $E0, $F0, $3B
$E0, $34 $E0, $F0, $34
$E0, $23 $E0, $F0, $23
$E0, $32 $E0, $F0, $32
$E0, $21 $E0, $F0, $21
$E0, $48 $E0, $F0, $48
$E0, $10 $E0, $F0, $10
$E0, $3A $E0, $F0, $3A
$E0, $30 $E0, $F0, $30
$E0, $28 $E0, $F0, $28
$E0, $20 $E0, $F0, $20
$E0, $18 $E0, $F0, $18
DRM014 — Rev 0
MOTOROLA