P080 kb flag, Shift flag – MagTek MINIWEDGE SWIPE READER User Manual

Page 25

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Section 3. Operation


19

P080 KB Flag

S A

3

A

2

A

1

- - - E


E

0 – Use internal US keyboard scan codes

1 – Use table stored in parameter area


A

1

0 – OEM, ALT+ASCII Code

1 – ANSI, ALT+'0'+ASCII Code

A

3, 2

00 – No Alt codes

01 – Alt only if no scan code in table

10 – Alt for all but fixed keys (CR, LF, TAB, SPACE, ESC, BS, DEL)

11 – Alt for all keys


S

0 – keyboard uses Caps Lock

1 – Keyboard uses Shift Lock


Shift Flag

The Shift Flag is included in flags for each scan code.

A

4

A

3

A

2

A

1

- - - -


A

1

0 – non-Alpha or (a-z)

1 – key affected by Caps Lock/upper case flag


A

2

0 – Does not need Ctrl key

1 – Needs Ctrl key


A

3

0 – Does not need AltGr key

1 – Needs AltGr


A

4

0 – Does not need Shift key

1 – Needs Shift key


Keyboard scan codes, other than English Language, are stored in locations 083H-114H as two-byte
values. The first byte describes the shift flag condition; the second byte is the scan code.



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