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參數(shù)資料
| 型號： | SC83702 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | ALL IN ONE MOUSE CONTROLLER |
| 中文描述： | ALL IN ONE的鼠標(biāo)控制器 |
| 文件頁數(shù)： | 6/10頁 |
| 文件大?。?/td> | 137K |
| 代理商： | SC83702 |
Silan
Semiconductors
SC83702
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 1.0
2000.12.31
6
FUNCTION DESCRIPTIONS
1.OPERATING MODE
A) Mouse System Mode
Anytime the mouse changes its state, including the key-switches and the photo-couple sensors, SC83702 will
detect the result and transmit to RS-232C. Mouse system transmits the result with five bytes in 1200 baud rate.
Each byte contains 10 bits, one start bit, one stop bit and eight data bits. The first byte represents the key-
switches status. The second byte denotes the number counted by the horizontal counter. The third byte conveys
the number accumulated by the vertical counter. If the mouse is moved faster, the photo-couple sensors detect
the "change state" and output the record, excessive horizontal counter will be transported through the fourth byte
and vertical counter through the fifth byte. Otherwise, the fourth and fifth byte are zero. Output bytes arrange:
Bit No.
7
6
5
4
3
2
1
0
1st Byte
1
0
0
0
0
L’*
M’*
R’*
2nd Byte
H7
H6
H5
H4
H3
H2
H1
H0
3rd
Byte
V7
V6
V5
V4
V3
V2
V1
V0
4th Byte
H7
H6
H5
H4
H3
H2
H1
H0
5th Byte
V7
V6
V5
V4
V3
V2
V1
V0
*
: “ ’ ” denotes complement
B) Microsoft Mode
In microsoft mode, the transmission cycle consists of three bytes. Each byte is divided into one start bit, seven
data bits and two stop bits. The first byte contains "L", "R" switch status and four bits of the two most significant
bits in horizontal counter and vertical counter. The next byte represents the value accumulated by horizontal
counter, the last byte is the data of the vertical counter. Notice that "M" key-switch is not active in the microsoft
mode and the vertical data is transmitted in 2's complement.
Bit No.
6
5
4
3
2
1
0
1st Byte
1
L
R
V7'
V6'
H7
H6
2nd Byte
0
H5
H4
H3
H2
H1
H0
3rd Byte
0
V5'
V4'
V3'
V2'
V1'
V0'
2.TESTING MODE
Whenever OPT is connected to V
DD
, the chip will enter buyer's testing mode. The X direction output signal
generators will present to L and M pin. Pressing "R" key can toggle the output from X direction to "Y" direction.
3.ECHO MODE
RXD will send out CD (H) code when RTS rise from low to high under microsoft mode. Under mouse system
mode, when RTS rise from low to high, the RXD pin SC83702 will send out two byte C8 (H) code.
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