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參數(shù)資料
| 型號(hào)： | EM83702B |
| 廠商： | ELAN Microelctronics Corp . |
| 英文描述： | 5.08MM EURO HEADER VERT ME BLK 16CKT |
| 中文描述： | ALL IN ONE的鼠標(biāo)控制器 |
| 文件頁(yè)數(shù)： | 2/11頁(yè) |
| 文件大?。?/td> | 81K |
| 代理商： | EM83702B |
EM83702
ALL IN ONE MOUSE CONTROLLER
2
* This specification are subject to be changed without notice.
4.15.1996
PIN ASSIGNMENTS
RS
MS
OSC.IN
OSC.OUT
RTS
RXD
VSS
R
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
V
DD
OPT
Y2
Y1
X2
X1
L
M
EM83702A
RS
OPT
MS
OSC.IN
OSC.OUT
RTS
RXD
VSS
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
V
DD
Y2
Y1
X2
X1
L
M
R
EM83702B
FUNCTIONAL BLOCK DIAGRAM
M
O
T
I
O
N
D
E
T
E
C
T
O
R
N
O
I
S
E
I
M
M
U
N
I
T
Y
D
E
B
O
U
N
C
E
SYSTEM CLOCK
GENERATOR
LEVEL-SHIFT
CIRCUIT
MODE
SELECTOR
TIMING
CONTROLLER
P/S
MULTIPLEXER
COUNTER
RXD
OPT
X1
X2
Y1
Y2
L
M
R
MS
OSC.OUT
RS
OSC.IN
RTS
PIN DESCRIPTIONS
Symbol
RS
I/O
I
Function
Crystal type select : "0" or floating, select 32.768KHz crystal. "1" select 3.58MHz
resonator.
When this pin is connected to V
, then EM83702 is assigned to operate
under the microsoft mode only. If the pin is connected to V
SS
, then EM83702
will operate under the mouse system mode.
However if this pin is "floating", then EM83702 is on the “power on initiation”
situation and if any one of three buttons is chosen, thence EM83702 will operate
under the mouse mode. And while the whole system is on “power on initiation”.No
key is chosen then operation will be under microsoft mode.
A built-in inverter provides oscillation with 32.768 KHz crystal or 3.58MHz
resonator.
Several counters used to decrease the frequency of oscillation and create 1200 baud
rate, key-switches debounce and photo-couple sensor scanning clock,etc.
Positive power input.
The signal is sent by mouse driver from computer to the mouse to select
a mode. During the reset time, EM83702 echoes the selected mode to the RXD line
after the reset pulse signal of the RTS line. RXD will send out CD(H) code if
it is under the microsoft mode. RXD will send out two byte C8(H) code if it is under
the mouse system mode in EM83702.
MS
I
OSC.IN
OSC.OUT
I
RTS
I
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