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PDF EM83053AH Data sheet ( Hoja de datos )

Número de pieza EM83053AH
Descripción KEYBOARD ENCODER
Fabricantes ELAN Microelectronics Corp 
Logotipo ELAN Microelectronics Corp Logotipo



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No Preview Available ! EM83053AH Hoja de datos, Descripción, Manual

EM83053A/BH
KEYBOARD ENCODER
GENERAL DESCRIPTION
The EM83053A/BH microcontroller is dedicated to a keyboard encoder ,specially designed for IBM PC AT and
all compatible machines. The EM83053A/BH controll all scan codes, three LEDs status, scan timing and
communications between the keyboard and PC. It is easy to implement a high performance, low cost keyboard
with the minimal external components.
FEATURES
• Low cost - eliminate need external components.
• Phantom key detects.
• RC oscillator ( 1.8432MHz ).
• Support scan code set 1 ,2 and 3.
• Support PC AT and PS/2 keyboard .
• Low power CMOS device technology.
• Internal pull-up resistor.
• Tri-state outputs for easy board application.
• Built-in 4K ROM.
• Support WINDOWSTM 95, 98, 2000 keys.
• 104/107 keys with multi-media or other special application keyboard encoder.
• WINDOWS is registered trademarks of Microsoft corperation.
APPLICATION
• IBM PC AT or compatible machine keyboard.
• IBM PS/2 model 30,50,60,80 or compatible machine keyboard.
• Japanese keyboard.
• Korean keyboard.
• Brazilian keyboard.
• European keyboard.
PIN ASSIGNMENTS
P91 6
P92 7
P93 8
XT 9
P95 10
P50 11
P51 12
P52 13
P53 14
P54 15
EM83053AH
36 NUM
35 SCROLL
34 P67
33 P66
32 P65
31 P64
30 P63
29 P62
28 P61
27 P60
P91 6
P92 7
P93 8
P94 9
P95 10
P50 11
P51 12
P52 13
P53 14
P54 15
EM83053BH
36 NUM
35 SCROLL
34 P67
33 P66
32 P65
31 P64
30 P63
29 P62
28 P61
27 P60
* This specification are subject to be changed without notice.
6.9.2000 1

1 page




EM83053AH pdf
EM83053A/BH
KEYBOARD ENCODER
bit 4~ bit 0
00000
00001
00010
00011
00100
00101
00110
00111
01000
01001
01010
01011
01100
01101
01110
01111
typematic rate ± 20%
30.0
26.7
24.0
21.8
20.0
18.5
17.1
16.0
15.0
13.3
12.0
10.9
10.0
9.2
8.6
8.0
3. Default rate = 10.9 chars/sec + 20%
Default delay = 500 mS ± 20%
Enable ( Hex F4 )
- Responds with ACK.
- Clears output buffer.
- Clears last typematic key.
- Start scanning.
Default Disable (Hex F5)
- Responds with ACK.
- Resets all conditions to power-on state.
- Clears output buffer.
- Sets the default key type ( scan code set 3 only ).
- Set the default typematic rate/delay.
- Clears last typematic key.
- Stops scanning,
Set Default (Hex F6 )
- Responds with ACK.
- Resets all conditions to power-on state.
- Clears output buffer.
- Sets the default key type ( scan code set 3 only ).
- Set the default typematic rate/delay.
- Clears last typematic key.
- Continues scanning,
Set All Keys ( Hex F7,F8,F9,FA )
* This specification are subject to be changed without notice.
bit 4~ bit 0
10000
10001
10010
10011
10100
10101
10110
10111
11000
11001
11010
11011
11100
11101
11110
11111
typematic rate ± 20%
7.5
6.7
6.0
5.5
5.0
4.6
4.3
4.0
3.7
3.3
3.0
2.7
2.5
2.3
2.1
2.0
6.9.2000 5

5 Page





EM83053AH arduino
EM83053A/BH
KEYBOARD ENCODER
Key
PAUSE @8
Make Code
E1 14 77 E1 F0 14 F0 77
Ctrl Key Pressed
E0 7E E0 F0 7E
Note .
@5 : 101-key keyboard only.
@6 : 102-key keyboard only.
@7 : If the left Shift key is held down, the F0 12/12 shift make and break is sent with the other scan codes.
If the right Shift key is held down, F0 59/59 is sent. If both Shift keys are down, both sets of codes
are sent with the other scan code.
@8 : This key is not typematic. All associated scan codes occur on the make of the key.
scan code set 3
Key
`(~)
1
2
3
4
5
6
7
8
9
0
-(_)
=(+)
BACK SPACE
TAB
Q
W
E
R
T
Y
U
I
O
P
[({)
](})
\( ) @9
CAPS
A
S
D
F
G
H
Make Code
0E
16
1E
26
25
2E
36
3D
3E
46
45
4E
55
66
0D
15
1D
24
2D
2C
35
3C
43
44
4D
54
5B
5C
14
1C
1B
23
2B
34
33
Break Code
F0 0E
F0 16
F0 1E
F0 26
F0 25
F0 2E
F0 36
F0 3D
F0 3E
F0 46
F0 45
F0 4E
F0 55
F0 66
F0 0D
F0 15
F0 1D
F0 24
F0 2D
F0 2C
F0 35
F0 3C
F0 43
F0 44
F0 4D
F0 54
F0 5B
F0 5C
F0 14
F0 1C
F0 1B
F0 23
F0 2B
F0 34
F0 33
Default Key State
Typematic
Typematic
Typematic
Typematic
Typematic
Typematic
Typematic
Typematic
Typematic
Typematic
Typematic
Typematic
Typematic
Typematic
Typematic
Typematic
Typematic
Typematic
Typematic
Typematic
Typematic
Typematic
Typematic
Typematic
Typematic
Typematic
Typematic
Typematic
Make/Break
Typematic
Typematic
Typematic
Typematic
Typematic
Typematic
* This specification are subject to be changed without notice.
6.9.2000 11

11 Page







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