Page 1
Silan
Semiconductors
KEYBOARD ENCODER
DESCRIPTION
The SC83053 is dedicated to a keyboard encoder, specially
designed for IBM PC AT and all compatible machines. The
SC83053 control 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 WINDOWS
• 104/107 keys with multi-media or other special application
keyboard encoder.
• WINDOWS is registered trademarks of Microsoft corperation.
TM
95, 98, 2000 keys.
SC83053
34
5
6
7
8
9
10
11
12
13
14
15
16 17 1819 20 21 2223 24 25 26
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.
12
Chip Topography
3839
37
36
35
34
33
32
31
30
29
28
27
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
1
Rev: 1.0 2001.11.8.
Page 2
Silan
Semiconductors
PIN CONFIGURATION
SC83053
DD
GND
V
OSCI
383923
37
P70
36
P71
35
P72
34
P67
33
P66
32
P65
31
P64
P63
30
29
P62
28
P61
P60
27
26
P85
P86
P87
P90
P91
P92
P93
P94
P95
P50
P51
P52
P53
P54
CLK
DATA
OSCO
4
5
6
7
8
9
10
11
12
13
14
161517 18 19 20 21 22 23 24 25
P55
P56
P57
SC83053
P80
P81
P82
P83
1
P84
ABSOLUTE MAXIMUM RATINGS
Characteristic Symbol Value Unit
Supply Voltage VCC -0.5~+7 V
Input Voltage VIN -0.3~+6 V
Output Voltage V
Temperature under Bias TB 0~70
Storage Temperature TS -65~150
(Ta=25°C)
-0.3~+6 V
OUT
°C
°C
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
2
Rev: 1.0 2001.11.8.
Page 3
Silan
Semiconductors
DC ELECTRICAL CHARACTERISTICS
Parameter Symbol Test condition Min. Typ. Max. Unit
Operating Voltage VCC 4.5 5 5.5 V
Operating Supply Current I
Input Leakage IIN VIN=VCC, VSS
Input High Voltage VIH 2.0 V
Input Low Voltage VIL 0.8 V
Output Low Voltage V
Output Low Voltage for LEDS V
Internal Pull-high Resistance (port 6,9) RPH1 V
Internal Pull-high Resistance for
DATA, CLK
Output Low Voltage for DATA CLK V
CC1
OL1 IOL1
OL2 IOL2
RPH2 V
OL3
F
=1.8432MHz 3 mA
OSC
=3.0mA 0.4 V
=10mA 3.2 V
=0V 12 23
PH1
=0V 1.5 2.2 3
PH2
IOL3=5mA 0.4 V
AC ELECTRICAL CHARACTERISTICS
Parameter Symbol Min. Typ. Max. Unit
Time from DATA transition to falling edge of CLK T1 5 25
Time from rising edge of CLK to DATA transition T2 5 T4-5
Duration of CLK inactive T3 30 40 50
Duration of CLK active T4 30 40 50
Time to auxiliary device inhibit after clock 11 to ensure the
auxiliary device does not start another transmission
Time from inactive to active CLK transition, used to time when
auxiliary device samples DATA
System clock FCLK 1.8432 MHz
T5 50
T6 5 25
SC83053
±1 µA
KΩ
KΩ
µs
µs
µs
µs
µs
µs
PIN DESCRIPTION
Pin no. Symbol I/O Function
11 P50 O Column 3 low output scan line, 3-state
12 P51 O Column 4 low output scan line, 3-state
(To be continued)
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
3
Rev: 1.0 2001.11.8.
Page 4
Silan
Semiconductors
(Continued)
Pin no. Symbol I/O Function
7-10 P92-P95 O Low output scan line, 3-state
13 P52 O Column 5 low output scan line, 3-state
14 P53 O Column 6 low output scan line, 3-state
15 P54 O Column 7 low output scan line, 3-state
16 P55 O Column 14 low output scan line, 3-state
17 P56 O Column 13 low output scan line, 3-state
18 P57 O Column 12 low output scan line, 3-state
19 P80 O Column 11 low output scan line, 3-state
20 P81 O Column 15 low output scan line, 3-state
21 P82 O Column 10 low output scan line, 3-state
22 P83 O Column 8 low output scan line, 3-state
23 P84 O Column 9 low output scan line, 3-state
24 P85 O Column 0 low output scan line, 3-state
25 P86 O Column 16 low output scan line, 3-state
26 P87 O Column 17 low output scan line, 3-state
5 P90 O Column 1 low output scan line, 3-state
6 P91 O Column 2 low output scan line, 3-state
1 GND I Ground
35 SCROLL O Scroll lock indicator
36 NUM O NUM lock indicator
37 CAPS O Caps lock indicator
27 P60 I
28 P61 I
29 P62 I
30 P63 I
31 P64 I
32 P65 I
33 P66 I
34 P67 I
4 CLK I/O
3 DATA I/O
38 VDD I +5V power supply
2 OSCO O CLOCK output
39 R_OSCI I
40 NC
Row 0 input scan line, internal pull high (17KΩ)
Row 1 input scan line, internal pull high (17KΩ)
Row 2 input scan line, internal pull high (17KΩ)
Row 3 input scan line, internal pull high (17KΩ)
Row 4 input scan line, internal pull high (17KΩ)
Row 5 input scan line, internal pull high (17KΩ)
Row 6 input scan line, internal pull high (17KΩ)
Row 7 input scan line, internal pull high (17KΩ)
CLOCK line for IBM communication, internal pull high (2.2KΩ)
DATA line for IBM communication, internal pull high (2.2KΩ)
Connect 51KΩ resistor for 1.8432MHz oscillation.
SC83053
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
4
Rev: 1.0 2001.11.8.
Page 5
Silan
Semiconductors
FUNCTION DESCRIPTION
Keyboard buffer
The keyboard will buffer 16 bytes in a first-in-first-out order when the system is able to receive scan codes from
the keyboard. The response codes and repeated codes will not be buffered. If keystrokes generate a multiple-
byte sequence, the entire sequence must fit into the buffer or the keystroke is discarded and a buffer-overrun
condition occurs.
Power-on Reset and self test
The duration of the keyboard Power-on-Reset(POR) should be within 150 milliseconds and 2 seconds after the
power is applied to the keyboard.
After executing POR , the keyboard executes a self test. The LEDs are turned on at the beginning and off at
the end of the self test. The self test takes a minimum 300 milliseconds and a maximum 500 milliseconds. If the
self test is successful, a completion code AA hex is sent to the system and the keyboard starts scanning. If the
self test fails, and error code is sent, the keyboard is disabled and waits for a command from the system. The
completion codes are sent between 450 milliseconds and 2.5 seconds after POR, and between 300 and 500
milliseconds after a RESET command is acknowledged.
Keyboard data output
When the keyboard is ready to send data to the system, it first checks clock and data lines. If either one is in
the low state, data is stored in the keyboard buffer. If both are in the high state, keyboard starts clocking data out.
Data will be valid before the trailing edge and after the leading edge of the clock pulse. During the transmission
the keyboard checks the clock line at least every 60 microseconds . If the system lowers the clock lines before
the leading edge of the 10th clock, the keyboard should stop sending, then buffer the data and return clock and
data lines to high state.
Keyboard data input
When the system is ready to send data to the keyboard, it first checks clock line to see if keyboard is sending
data. If keyboard is not sending data or it is sending data but has not reached the 10th clock, the system can
inhibit the interface by forcing the clock line low for more than 60 microseconds and prepares to send data. The
keyboard checks clock line status at least every 5 milliseconds. If a system Request to Send (RTS) is detected,
the keyboard clocks 11 bits in. After the 10th bit, the keyboard checks for a high state in data line then pulls it low
and clocks one more bit to signal the system that data has been received. If data is low after the 10th bit, it
indicates a frame error. The keyboard should continue to count until data line goes high, then pulls it low and
issues a RESEND to the system
.
SC83053
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
5
Rev: 1.0 2001.11.8.
Page 6
Silan
Semiconductors
Command from the system
The system can send commands to the keyboard at any time. The keyboard needs to respond within 20
milliseconds, unless the system prevents keyboard output, when doing self test or executing a RESET.
The following are the keyboard input commands and the actions that keyboard needs to take.
Set /Reset Status indicators ( Hex ED )
- Responds ACK.
- Receives option byte.
- Responds ACK.
- Updates status indicators.
- Returns to previous scanning state.
Echo ( Hex EEH )
- Responds with EE hex.
- Returns to previous scanning state.
Invalid commands ( Hex EF and F1 )
- Returns a RESEND command.
- Returns to previous scanning state.
Select Alternate Scan Codes ( Hex F0 )
- Responds ACK.
- Clears output buffer.
- Sets the default typematic rate/delay.
- Clears last typematic key.
- Receives option byte.
- Responds ACK.
- Option byte =
01 : selects scan code set 1
02 : selects scan code set 2
SC83053
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
6
Rev: 1.0 2001.11.8.
Page 7
Silan
Semiconductors
03 : selects scan code set 3
- Returns to previous scanning rate.
Read ID (F2)
- Responds with ACK.
- Discontinues scanning.
- Sends two ID bytes. The second byte will be sent within 500 uS after first byte.
- Resumes scanning.
Set Typematic Rate/Delay ( Hex F3 )
- Responds ACK.
- Receives rate/delay value byte
- Responds ACK.
- Set rate/delay (* Note 1)
- Returns to previous scanning state.
* Note 1
1. Repeat period = ( 8+A ) x ( 2B) x 0.00417 seconds
A : binary value of bits 2, 1, and 0.
B : binary value of bits 4 and 3.
2. Delay = ( C +1 ) x 250 milliseconds
C : binary value of bits 6 and 5. Bit 7 is always 0.
SC83053
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
7
Rev: 1.0 2001.11.8.
Page 8
Silan
Semiconductors
bit4~bit0
00000 30.0 10000 7.5
00001 26.7 10001 6.7
00010 24.0 10010 6.0
00011 21.8 10011 5.5
00100 20.0 10100 5.0
00101 18.5 10101 4.6
00110 17.1 10110 4.3
00111 16.0 10111 4.0
01000 15.0 11000 3.7
01001 13.3 11001 3.3
01010 12.0 11010 3.0
01011 10.9 11011 2.7
01100 10.0 11100 2.5
01101 9.2 11101 2.3
01110 8.6 11110 2.1
01111 8.0 11111 2.0
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.
Typematic rate ±20%
Bit 4~bit0
SC83053
Typematic rate ±20%
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
8
Rev: 1.0 2001.11.8.
Page 9
Silan
Semiconductors
- 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 )
- Responds ACK.
- Clears output buffer.
- Sets all key type (affect only scan code set 3 operation).
F7 : Typematic
F8 : Make/Break
F9 : Make
FA : Typematic/Make/Break
- Returns to previous scanning rate.
Set Key Type ( Hex FB,FC,FD )
- Responds ACK.
- Clears output buffer.
- Receives key ID byte
- Responds ACK.
- Sets key ID type (affect only scan code set 3 operation).
FB : Typematic
FC : Make/Break
FD : Make
- Returns to previous scanning rate.
SC83053
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
9
Rev: 1.0 2001.11.8.
Page 10
Silan
Semiconductors
Resend ( Hex FE )
-Sends the previous output again. If the previous byte is RESEND, the last byte before RESEND shall be sent.
Reset ( Hex FF )
- Responds ACK.
- Checks clock and data lines - Reset in the high state for at least 500 microseconds or receives another
command.
- Default to scan code set 2.
Command to the system
The following are the keyboard output commands.
Acknowledge ( Hex FA )
The keyboard sends an acknowledge in response to any valid command from the system except for RESEND
and ECHO.
BAT Completion Code ( Hex AA )
SC83053
This command is issued after successful completion of keyboard self test.
Echo ( Hex EE )
The keyboard sends this code in response to an ECHO command.
Keyboards ID ( Hex 83AB )
The 2 byte ID is issued to respond to READ ID command. The low byte is sent first, followed by the high byte.
Keyboard buffer Overrun ( Hex 00 or FF )
If keyboard buffer overflows, the overrun code will replace the last byte in the buffer. If the keyboard is using scan
code set 1 , the code is hex FF. For sets 2 and 3, the code is hex 00.
Resend ( Hex FE )
When the keyboard receives an invalid input or any input with incorrect parity, the RESEND command is sent.
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 1.0 2001.11.8.
10
Page 11
Silan
Semiconductors
Keyboard Scan Code Table
The keyboard contains 3 scan code sets. The system defaults to scan code set 2, but can be switched to set 1
or set 3 . The following tables show the key numbers and three scan code sets in hexadecimal values. All the
keys are typematics except for the pause key. When a key is pressed down, the make scan code is sent to the
system. When the key is released, its break code is sent. If two or more keys are held down, only the last key
pressed repeats at the typematic rate. Typematic operation stops when the last pressed key is released, even if
other keys are being released or some other keys are still held down.
The following table shows three scan code sets used in the keyboard.
Scan code set 1
Key Make code Break code Key Make code Break code
`(~) 29 A9 X 2D AD
1 02 82 C 2E AE
2 03 83 V 2F AF
3 04 84 B 30 B0
4 05 85 N 31 B1
5 06 86 M 32 B2
6 07 87 ,(<) 33 B3
7 08 88 .(>) 34 B4
8 09 89 /(?) 35 B5
9 0A 8A SHIFT_R 36 B6
0 0B 8B CTRL_L 1D 9D
-(-) 0C 8C ALT_L 38 B8
=(+) 0D 8D SPACE 39 B9
BACK SPACE 0E 8E ALT_R E0 38 E0 B8
TAB 0F 8F CTRL_R E0 1D E0 9D
Q 10 90 NUM 45 C5
W 11 91 (7) 47 C7
E 12 92 (4) 4B CB
R 13 93 (1) 4F CF
T 14 94 (8) 48 C8
Y 15 95 (5) 4C CC
SC83053
(To be continued)
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 1.0 2001.11.8.
11
Page 12
Silan
Semiconductors
(Continued)
Key Make code Break code Key Make code Break code
U 16 96 (2) 50 D0
I 17 67 (0) 52 D2
O 18 98 (*) 37 B7
P 19 99 (9) 49 C9
[({ ) 1A 9A (6) 4D CD
] (}) 1B 9B (3) 51 D1
\ (|) @5 2B AB (DEL) 53 D3
CAPS 3A BA (-) 4A CA
A 1E 9E (+) 4E CE
S 1F 9F (ENTER) E0 1C E0 9C
D 20 A0 ESC 01 81
F 21 A1 F1 3B BB
G 22 A2 F2 3C BC
H 23 A3 F3 3D BD
J 24 A4 F4 3E BE
K 25 A5 F5 3F BF
L 26 A6 F6 40 C0
;(:) 27 A7 F7 41 C1
‘ (“) 28 A8 F8 42 C2
K42 @2 2B AB F9 43 C3
ENTER 1C 9C F10 44 C4
SHIFT_L 2A AA F11 57 D7
K45 @2 56 D6 F12 58 D8
Z 2C AC SCROLL 46 C6
Key
INS E0 52/E0 D2 E0 AA E0 52
DEL E0 53/E0 D3 E0 AA E0 53
LEFT E0 4B/E0 CB E0 AA E0 4B
Base case, or shift+num lock
make/break
Shift case @3
make/break
/E0 D2 E0 2A
/E0 D3 E0 2A
/E0 CB E0 2A
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
12
SC83053
Num lock
make/break
E0 2A E0 52
/E0 D2 E0 AA
E0 2A E0 53
/E0 D3 E0 AA
E0 2A E0 4B
/E0 CB E0 AA
(To be continued)
Rev: 1.0 2001.11.8.
Page 13
Silan
Semiconductors
(Continued)
Key
HOME E0 47/E0 C7 E0 AA E0 47
END E0 4F/E0 CF E0 AA E0 4F
UP E0 48/E0 C8 E0 AA E0 48
DOWN E0 50/E0 D0 E0 AA E0 50
PAGE UP E0 49/E0 C9 E0 AA E0 49
PAGE DOWN E0 51/E0 D1 E0 AA E0 51
RIGHT E0 4D/ED CD E0 AA E0 4D
Base case, or shift+num lock
make/break
Shift case @3
make/break
/E0 C7 E0 2A
/E0 CF E0 2A
/E0 C8 E0 2A
/E0 D0 E0 2A
/E0 C9 E0 2A
/E0 D1 E0 2A
/E0 CD E0 2A
Key Scan code make/break Shift case make/break @3
(/) E0 35/E0 B5 E0 AA E0 35/E0 B5 E0 2A
Key Scan code make/break Ctrl case, shift case
make/break
PRINT E0 2A E0 37
/E0 B7 E0 AA
Key Make code Ctrl key pressed
PAUSE @4 E1 1D 45 E1 9D C5 E0 46 E0 C6
Note:
@1. 101-key keyboard only.
@2. 102 key keyboard only.
@3. If the left shift key is held down, the AA/2A shift make and break is sent with the other scan codes. If the
right shift key is held down, B6/36 is sent. If both shift keys are down, both sets of codes are sent with the
other scan code.
@4. This key is not typematic. All associated scan codes occur on the make of the key.
E0 37 /E0 B7 54/D4
SC83053
Num lock
make/break
E0 2A E0 47
/E0 C7 E0 AA
E0 2A E0 4F
/E0 CF E0 AA
E0 2A E0 48
/E0 C8 E0 AA
E0 2A E0 50
/E0 D0 E0 AA
E0 2A E0 49
/E0 C9 E0 AA
E0 2A E0 51
/E0 D1 E0 AA
E0 2A E0 4D
/E0 CD E0 AA
Alt case make/break
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 1.0 2001.11.8.
13
Page 14
Silan
Semiconductors
Scan code set 2
Key Make code Break code Key Make code Break code
`(~) 0E F0 0E X 22 F0 22
1 16 F0 16 C 21 F0 21
2 1E F0 1E V 2A F0 2A
3 26 F0 26 B 32 F0 32
4 25 F0 25 N 31 F0 31
5 2E F0 2E M 3A F0 3A
6 36 F0 36 ,(<) 41 F0 41
7 3D F0 3D .(>) 49 F0 49
8 3E F0 3E /(?) 4A F0 4A
9 46 F0 46 SHIFT_R 59 F0 59
0 45 F0 45 CTRL_L 14 F0 14
-(-) 4E F0 4E ALT_L 11 F0 11
=(+) 55 F0 55 SPACE 29 F0 29
BACK SPACE 66 F0 66 ALT_R E0 11 F0 E0 11
TAB 0D F0 0D CTRL_R E0 14 F0 E0 14
Q 15 F0 15 NUM 77 F0 77
W 1D F0 1D (7) 6C F0 6C
E 24 F0 24 (4) 6B F0 6B
R 2D F0 2D (1) 69 F0 69
T 2C F0 2C (8) 75 F0 75
Y 35 F0 35 (5) 73 F0 73
U 3C F0 3C (2) 72 F0 72
I 43 F0 43 (0) 70 F0 70
O 44 F0 44 (*) 7C F0 7C
P 4D F0 4D (9) 7D F0 7D
[({) 54 F0 54 (6) 74 F0 74
] (}) 5B F0 5B (3) 7A F0 7A
\ (|) @5 5D F0 5D (DEL) 71 F0 71
CAPS 58 F0 58 (-) 7B F0 7B
A 1C F0 1C (+) 79 F0 79
S 1B F0 1B (ENTER) E0 5A F0 E0 5A
D 23 F0 23 ESC 76 F0 76
F 2B F0 2B F1 05 F0 05
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
14
SC83053
(To be continued)
Rev: 1.0 2001.11.8.
Page 15
Silan
Semiconductors
(Continued)
Key Make code Break code Key Make code Break code
G 34 F0 34 F2 06 F0 06
H 33 F0 33 F3 04 F0 04
J 3B F0 3B F4 0C F0 0C
K 42 F0 42 F5 03 F0 03
L 4B F0 4B F6 0B F0 0B
;(:) 4C F0 4C F7 83 F0 83
‘ (“) 52 F0 52 F8 0A F0 0A
K42 @6 5D F0 5D F9 01 F0 01
ENTER 5A F0 5A F10 09 F0 09
SHIFT_L 12 F0 12 F11 78 F0 78
K45 @6 61 F0 61 F12 07 F0 07
Z 1A F0 1A SCROLL 7E F0 7E
Key
INS E0 70/E0 F0 70 E0 F0 12 E0 70
DEL E0 71/E0 F0 71 E0 F0 12 E0 71
LEFT E0 6B/E0 F0 6B E0 F0 12 E0 6B
HOME E0 6C/E0 F0 6C E0 F0 12 E0 6C
END E0 69/E0 F0 69 E0 F0 12 E0 69
UP E0 75/E0 F0 75 E0 F0 12 E0 75
DOWN E0 72/E0 F0 72 E0 F0 12 E0 72
PAGE UP E0 7D/E0 F0 7D E0 F0 12 E0 7D
PAGE DOWN E0 7A/E0 F0 7A E0 F0 12 E0 7A
RIGHT E0 74/E0 F0 74 E0 F0 12 E0 74
Base case, or shift+num
lock make/break
Shift case @7
make/break
/E0 F0 70 E0 12
/E0 F0 71 E0 12
/E0 F0 6B E0 12
/E0 F0 6C E0 12
/E0 F0 69 E0 12
/E0 F0 75 E0 12
/E0 F0 72 E0 12
/E0 F0 7D E0 12
/E0 F0 7A E0 12
/E0 F0 74 E0 12
SC83053
Num lock make/break
E0 F0 12 E0 70
/E0 F0 70 E0 F0 12
E0 F0 12 E0 71
/E0 F0 71 E0 F0 12
E0 F0 12 E0 6B
/E0 F0 6B E0 F0 12
E0 F0 12 E0 6C
/E0 F0 6C E0 F0 12
E0 F0 12 E0 69
/E0 F0 69 E0 F0 12
E0 F0 12 E0 75
/E0 F0 75 E0 F0 12
E0 F0 12 E0 72
/E0 F0 72 E0 F0 12
E0 F0 12 E0 7D
/E0 F0 7D E0 F0 12
E0 F0 12 E0 7A
/E0 F0 7A E0 F0 12
E0 F0 12 E0 74
/E0 F0 74 E0 F0 12
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 1.0 2001.11.8.
15
Page 16
Silan
Semiconductors
Key Scan code make/break Shift case make/break @3
(/) E0 4A/E0 F0 4A E0 F0 12 E0 4A/ E0 F0 4A E0 12
Key Scan code make/break
PRINT E0 12 E0 7C
/E0 F0 7C E0 F0 12
Key Make code Ctrl key pressed
PAUSE @8 E1 14 77 E1 F0 14 F0 77 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 Make code Break code Default key state
`(~) 0E F0 0E Typematic
1 16 F0 16 Typematic
2 1E F0 1E Typematic
3 26 F0 26 Typematic
4 25 F0 25 Typematic
5 2E F0 2E Typematic
6 36 F0 36 Typematic
7 3D F0 3D Typematic
8 3E F0 3E Typematic
9 46 F0 46 Typematic
0 45 F0 45 Typematic
-(-) 4E F0 4E Typematic
=(+) 55 F0 55 Typematic
BACK SPACE 66 F0 66 Typematic
Ctrl case, shift case
make/break
E0 7C/E0 F0 7C 84/F0 84
SC83053
Alt case make/break
(To be continued)
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 1.0 2001.11.8.
16
Page 17
(Continued)
K42 @10 53 F0 53 Typematic
SHIFT_L 12 F0 12 Make/break
K45 @10 13 F0 13 Typematic
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Silan
Semiconductors
Key Make code Break code Default key state
TAB 0D F0 0D Typematic
Q 15 F0 15 Typematic
W 1D F0 1D Typematic
E 24 F0 24 Typematic
R 2D F0 2D Typematic
T 2C F0 2C Typematic
Y 35 F0 35 Typematic
U 3C F0 3C Typematic
I 43 F0 43 Typematic
O 44 F0 44 Typematic
P 4D F0 4D Typematic
[({} 54 F0 54 Typematic
] ()) 5B F0 5B Typematic
\ (|) @9 5D F0 5D Typematic
CAPS 14 F0 14 Make/break
A 1C F0 1C Typematic
S 1B F0 1B Typematic
D 23 F0 23 Typematic
F 2B F0 2B Typematic
G 34 F0 34 Typematic
H 33 F0 33 Typematic
J 3B F0 3B Typematic
K 42 F0 42 Typematic
L 4B F0 4B Typematic
;(:) 4C F0 4C Typematic
‘ (“) 52 F0 52 Typematic
ENTER 5A F0 5A Typematic
Z 1A F0 1A Typematic
X 22 F0 22 Typematic
C 21 F0 21 Typematic
17
SC83053
(To be continued)
Rev: 1.0 2001.11.8.
Page 18
Silan
Semiconductors
(Continued)
Key Make code Break code Default key state
V 2A F0 2A Typematic
B 32 F0 32 Typematic
N 31 F0 31 Typematic
M 3A F0 3A Typematic
,(<) 41 F0 41 Typematic
.(>) 49 F0 49 Typematic
/(?) 4A F0 4A Typematic
SHIFT_R 59 F0 59 Make/break
CTRL_L 11 F0 11 Make/break
ALT_L 19 F0 19 Make/break
SPACE 29 F0 29 Typematic
ALT_R 39 F0 39 Make only
CTRL_R 58 F0 58 Make only
INS 67 F0 67 Make only
DEL 64 F0 64 Typematic
LEFT 61 F0 61 Typematic
HOME 6E F0 6E Make only
END 65 F0 65 Make only
UP 63 F0 63 Typematic
DOWN 60 F0 60 Typematic
PAGE UP 6F F0 6F Make only
PAGE DOWN 6D F0 6D Make only
RIGHT 6A F0 6A Typematic
NUM 76 F0 76 Make only
(7) 6C F0 6C Make only
(4) 6B F0 6B Make only
(1) 69 F0 69 Make only
(/) 77 F0 77 Make only
(8) 75 F0 75 Make only
(5) 73 F0 73 Make only
(2) 72 F0 72 Make only
(0) 70 F0 70 Make only
(*) 7E F0 7E Make only
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
18
SC83053
(To be continued)
Rev: 1.0 2001.11.8.
Page 19
Silan
Semiconductors
(Continued)
Key Make code Break code Default key state
(9) 7D F0 7D Make only
(6) 74 F0 74 Make only
(3) 7A F0 7A Make only
(DEL) 71 F0 71 Make only
(-) 84 F0 84 Make only
(+) 7C F0 7C Typematic
(ENTER) 79 F0 79 Make only
ESC 08 F0 08 Make only
F1 07 F0 07 Make only
F2 0F F0 0F Make only
F3 17 F0 17 Make only
F4 1F F0 1 F Make only
F5 27 F0 27 Make only
F6 2F F0 2F Make only
F7 37 F0 37 Make only
F8 3F F0 3F Make only
F9 47 F0 47 Make only
F10 4F F0 4F Make only
F11 56 F0 56 Make only
F12 5E F0 5E Make only
PRINT 57 F0 57 Make only
SCROLL 5F F0 5F Make only
PAUSE 62 F0 62 Make only
Note: @ 9 : 101-key keyboard only
@10 : 102-key keyboard only
SC83053
New key codes for scan set 1:
New key Make Break
LWIN
RWIN E0 5C E0 DC
APP E0 5D E0 DD
N-CHG(131) 7B FB
E0 5B E0 DB
(To be continued)
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 1.0 2001.11.8.
19
Page 20
Silan
Semiconductors
(Continued)
New key Make Break
CHG (132) 79 F9
ROMA (133) 70 F0
K14 7D FD
K56 73 F3
K107 7E FE
KL F1 X
KR F0 X
POWER E0 5E E0 DE
SLEEP E0 5F E0 DF
WAKE UP E0 63 E0 E3
New key codes for scan set 2:
New key Make Break
LWIN E0 1F E0 F0 1F
RWIN E0 27 E0 F0 27
APP E0 2F E0 F0 2F
N-CHG(131) 67 F0 67
CHG (132) 64 F0 64
ROMA (133) 13 F0 13
K14 6A F0 6A
K56 51 F0 51
K107 6D F0 6D
KL F1 X
KR F2 X
POWER E0 37 E0 F0 37
SLEEP E0 3F E0 F0 3F
WAKE UP E0 5E E0 F0 5E
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
20
SC83053
Rev: 1.0 2001.11.8.
Page 21
Silan
Semiconductors
New key codes for scan set 3:
New key Make Break
LWIN 8B F0 8B MAKE/BREAK
RWIN 8C F0 8C MAKE/BREAK
APP 8D F0 8D MAKE/BREAK
N-CHG(131) 85 F0 85 MAKE
CHG (132) 86 F0 86 MAKE
ROMA (133) 87 F0 87 MAKE
K14 5D F0 5D TYPEMATIC
K56 51 F0 51 TYPEMATIC
K107 7B F0 7B TYPEMATIC
KL F1 X
KR F2 X
POWER X X
SLEEP X X
WAKE UP X X
Windows 2000 multi-media key code:
MAKE BREAK MAKE BREAK
K130: WWW Back E06A E0EA E038 E0F038
K131: WWW Forward E069 E0E9 E030 E0F030
K132: WWW stop E068 E0E8 E028 E0F028
K133: WWW Refresh E067 E0E7 E020 E0F020
K134: WWW Search E065 E0E5 E010 E0F010
K135: WWW Favorites E066 E0E6 E018 E0F018
K136: WWW Web/Home E032 E0B2 E03A E0F03A
K137: Mail E06C E0EC E048 E0F048
K138: Mute E020 E0A0 E023 E0F023
K139: Volume- E02E E0AE E021 E0F021
K140: Volume+ E030 E0B0 E032 E0F032
K141: Play/Pause E022 E0A2 E034 E0F034
K142: Stop E024 E0A4 E03B E0F03B
K143: Pre Track E010 E090 E015 E0F015
K144: Next track E019 E099 E04D E0F04D
K145: Media Select E06D E0ED E050 E0F050
K146: My Computer E06B E0EB E040 E0F040
K147: Calculator E021 E0A1 E02B E0F02B
SET1 SET2
SC83053
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 1.0 2001.11.8.
21
Page 22
Silan
Semiconductors
Turbo Function:
Fn+ F1 2.1Hz F6 30Hz
F2 4.2Hz F7 46Hz
F3 7.2Hz F11 Key Loak
F4 16.3Hz
F5 21Hz
Internal-Multikey Function:
Fn+
(M/Mode)
Multi-Media Function Internal Function O.S. Function
Pad_2 Volume- Pad_Enter Web/Home Pad_0 My Computer
Pad_3 Play/Pause Pad_+ Mail Pad_1 Calculator
Pad_4 Pre Track Pad_- Favorites
Pad_5 Media Pad_. Search
Pad_6 Next Track Right Arrow Forward E Eur Key
Pad_7 Mute Left Arrow Back
Pad_8 Volume+ Down Arrow Stop
Pad_9 Stop Up Arrow Refresh
Fig1. The Windows 2000 keyboard layout
SC83053
K130 K131 K132 K133 K134 K1 35 K136 K137 K138 K139 K140 K141 K142 K143 K144 K14 5
\( )
PRINT SCROLL PAUSE
INS HOME
DEL END
LEFT DOWN RIGHT
ESC F1 F2 F3 F4 F5 F6 F7 F8 F9 F10 F11 F12
(~.) 1 2 3 4 65 7 8 9 10 (+)(-)
TAB Q W E R YT U I O P ](} )[({)
A S D F HG J K L ;(:) '(")CAPS
SHIFT_L Z X C V NB M ,(<) .(>) SHIFT_R
CTRL_L ALT_L SPACE ALT_R CTRL_R
SPACE
=
ENTER
/(?)
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
22
K146 K147
PAGE
NUM (/) (*) (-)
UP
PAGE
DOWM
(7) (8) (9)
(4) (5) (6)
UP
(1) (2) (3)
(0) (*)
(+)
(ENTER)
Rev: 1.0 2001.11.8.
Page 23
Silan
Semiconductors
ESC F1 F2 F3 F4 F5 F6 F7 F8 F9 F10 F11 F12 POWER SLEEP WAK EUP
Fig2. The 107-key keyboard layout
SC83053
\( )
PRINT SCROLL
INS HOME
DEL END
LEFT DOWN RIGHT
(~.) 1 2 3 4 65 7 8 9 10 (+ )(-)
TAB Q W E R YT U I O P ](})[({)
A S D F HG J K L ;(: ) '(")CAPS
SHIFT_L Z X C V NB M ,(<) .(>) SHIFT_R
CTRL_L ALT_L SPACE ALT_R CTRL_R
LWIN RWIN
SPACE
=
ENTER
/(?) APP
Fig3. The 104-key keyboard layout
ESC F1 F2 F3 F4 F5 F6 F7 F8 F9 F10 F11 F12 PRINT SCROLL PAUSE
(~.) 1 2 3 4 65 7 8 9 10 (+)(-)
TAB Q W E R YT U I O P ](})[({)
A S D F HG J K L ;(: ) '(")CAPS
SHIFT_L Z X C V NB M ,(<) .(>) SHIFT_R
CTRL_L ALT_L SPACE ALT_R CTRL _R
LWIN RWIN
/(?) APP
SPACE
=
\( )
ENTER
INS HOME
DEL END
LEFT DOWN RIGHT
TIMING DIAGRAMS
Fig4. Keyboard output data timings
2nd
CLK
10th
CLK
T4
Fig5. Keyboard input data timings
2nd
CLK
T6
Bit 0 Parity Bit
9th
CLK
DATA
CLK
DATA
CLK
1ST
CLK
T3
T3
T1
T2
Start B it Bit 0 Pa rity Bit Stop Bit
I/O
Inhibit
Start Bit
1ST
CLK
T3 T4
PAUSE
NUM (/) (*) (-)
PAGE
UP
(7) (8) (9)
PAGE
DOWN
(4) (5) (6)
UP
(1) (2) (3)
(0) (*)
(+)
(ENTER)
PAGE
NUM (/) (*) (-)
UP
PAGE
DOWN
(7) (8) (9)
(4) (5) (6)
UP
(1) (2) (3)
(0) (*)
(+)
(ENTER)
11th
CLK
10th
CLK
Stop Bit
11th
CLK
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 1.0 2001.11.8.
23
Page 24
Silan
Semiconductors
APPLICATION CIRCUIT
C2
R3
LED
R
C3
C4
C5
C6
C7
C14
C13
Turbo func.
V
CC
Special Func.
Internal-Multi Func.
VCC
10
GND
1
P82
51K
R_OSCI
NC
39
40
22
21
23
P83
P84
DATA
CLK
C1
P90
CLK
DATA
OSCO
2
3
4
P91
P92
P93
P94
P95
P50
P51
P52
P53
P54
C12
5
6
7
8
9
10
11
12
13
14
15
16
17
P56
P55
C11
C15 C10
P57
SC83053
18
19
20
P80
P81
P85
SC83053
CAPS
LED
DD
V
CAPS
37
38
24
P86
NUM
36
SCROLL
35
P67
34
P66
33
P65
32
P64P64
31
P63
30
P62
29
P61
28
P60
27
25
26
C17
P87
C16
C0
C9
C8
NUM
LED
R7
R6
R5
R4
R3
R2
R1
R0
SCROLL
LED
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 1.0 2001.11.8.
24
Page 25
Silan
Semiconductors
R0 R1 R2 R3 R4 R5 R6 R7
C0
C1
C2
C3
C4
C5
C6
C7
C8
C9
C10
C11
C12
C13
C14
C15
C16 Mail WIN-L
C17
PAUSE POWER SLEEP CRTL-R WAKE UP CTRL-L F5
126
Q TAB A ESA Z N-CHG `(~) 1(!)
017 016 031 110 046 131 001 002
W CAP S K45 X CHG F1 2(@)
018 030 032 045 047 132 112 003
E F3 D F4 C ROMA F2 3(#)
019 114 033 115 048 133 113 004
R T F G V B 5(%) 4($)
020 021 034 035 049 050 006 005
U Y J H M N 6(^) 7(&)
023 022 037 036 052 051 007 008
I ]( } ) K F6 ,(<) K56 + (=) 8(*)
024 028 038 117 053 056 013 009
O F7 L .(>) APP F8 9 (‘(’)
025 118 039 054 APP 119 010
P [ ( { ) ; (:) ‘ ( “) K42 / (?) _ (-) 0 (‘)’)
026 027 040 041 042 055 012 011
SCROLL FN ALT-L M/Mode ALT-R PRINT
125 060 062 124
K14 BACK \ (|) F11 ENTER F12 F9 F10
014 015 029 122 043 123 120 121
7 4 1 SPACE NUM ↓ DEL POWER
(K) 091 (K) 092 (K) 093 061 090 084 076
8 5 2 0 / → INS SLEEP
(K) 096 (K) 097 (K) 098 (K) 099 (K) 095 089 075
9 6 3 ¥ * - PAGE UP PAGE
(K) 101 (K) 102 (K) 103 (K) 104 (K) 100 105 085 086
+ ENTER ↑ Play/Pause ← HOME END
(K) 106 107 108 083 079 080 081
Wake up SHIFT-L SHIFT-R Volume- Volume+ Next track Prev track Media
044 057
K150
(KC-L)
WWfavorite WIN-R MyComputer stop calculator Web/home K151
WWforward WWWstop WWWback
064 058 116
WWrefresh mute WWWsearch
SC83053
DOWN
(KC-R)
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 1.0 2001.11.8.
25
Page 26
Silan
Semiconductors
CHIP TOPOGRAPHY
SC83053
10
11
12
13
34
5
6
7
8
9
12
3839
37
36
35
34
33
32
31
30
29
28
14
15
16 17 18 19 20 21 22 23 24 25 26
Chip Size:1.72D2.17(mm2)
The substrate should be connected to the GND level.
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
26
27
Rev: 1.0 2001.11.8.
Page 27
Silan
Semiconductors
PAD COORDINATES (Unit: µm)
Pad No. Symbol X Y Pad No. Symbol X Y
1 GND 234.40 937.20 21 P82 98.80 -933.75
2 OSCO -270.90 928.25 22 P83 221.80 -933.75
3 DATA -482.25 938.55 23 P84 345.00 -933.75
4 CLK -708.20 938.40 24 P85 468.20 -933.75
5 P90 -707.95 679.15 25 P86 591.40 -933.75
6 P91 -707.95 555.95 26 P87 714.60 -933.75
7 P92 -707.95 432.75 27 P60 699.55 -716.85
8 P93 -707.95 284.20 28 P61 699.55 -553.00
9 P94 -707.95 111.65 29 P62 699.55 -400.45
10 P95 -707.95 -70.75 30 P63 699.55 -239.85
11 P50 -707.95 -239.30 31 P64 699.55 -72.80
12 P51 -707.95 -401.25 32 P65 699.55 106.10
13 P52 -707.95 -550.70 33 P66 699.55 265.20
14 P53 -707.95 -695.40 34 P67 699.55 404.25
15 P54 -707.95 -840.50 35 P72 694.35 527.45
16 P55 -517.20 -933.75 36 P71 694.35 650.65
17 P56 -394.00 -933.75 37 P70 694.35 773.85
18 P57 -270.80 -933.75 38 VDD 633.95 929.90
19 P80 -147.60 -933.75 39 OSCI 397.05 937.25
20 P81 -24.40 -933.75
Note: The original point of the coordinate is the die center.
SC83053
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 1.0 2001.11.8.
27
Loading...