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Default disable (F5h)
The keyboard performs the same functions as "Set default" except that further
scanning and transmission is disabled.
Set default (F6h)
The keyboard resets, clears its buffers, and responds with an ACK. If it was previously
enabled it then resumes normal scanning/transmission.
Set all keys (F7h, F8h, F9h and FAh)
These commands are only valid when the keyboard is set to "code set three". The
different code sets are described elsewhere in this section. The commands set all of
the keys to be the type specified: typematic (F7h), make/break (F8h), make only (F9h)
and typematic/make/break (FAh).
Set key type (FBh, FCh and FDh)
These commands are only valid when the keyboard is set to "code set three". The
different code sets are described elsewhere in this section. The commands set
individual keys to be the type specified: typematic (FBh), make/break (FCh) and make
only (FDh). The command is first sent, the keyboard acknowledges the command and
waits for the key scan code to be sent. One or more key codes can be sent. The
keyboard then waits for an ENABLE (F4h) before resuming scanning.
Resend (FEh)
The keyboard resends the last code sent to the system unit.
Reset (FFh)
The keyboard responds with an ACK, performs a set of internal diagnostics, clears its
key buffer, and then sets the typematic rate/delay to the default values.
Scan codes
Three sets of scan codes are available. The keyboard normally selects code set 2 (AT
compatible). The other sets may be selected using select alternative scan codes
command (F0h).
The following diagram numbers the positions which are referred to in the following
scan code tables.
110
44
112 113
114
115
116 117
118
1
2
3
4
5
6
7
8
9
10 11 12 13
16
17 18 19 20 21 22 23 24 25 26 27 28
30
31
32
33
35
36
37
38
34
46 47 48 49 50 51 52 53 54 55
45
58
60
61
LS PRO HARDWARE TECHNICAL REFERENCE 4/23
Peripheral items
119
120 121
123
124
125
126
122
15
75
80
85
90 95 100 105
91 96 101
76
81
86
43
39
40
41
42
92 97 102
57
83
93 98 103
62
64
79
84
89
106
108
99
104
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