EM83807 データシートの表示（PDF） - ELAN Microelectronics
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EM83807 Datasheet PDF : 7 Pages
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EM83807
ALL-IN-ONE PLUG & PLAY 3-BUTTON SERIAL MOUSE CONTROLLER
FUNCTIONAL BLOCK DIAGRAM
Preliminary
RXD
RTS
OPT
X1
X2
Y1
Y2
C
O
M
P
A
R
A
T
O
D
ME
OT
TE
IC
OT
NO
R
R
COUNTER
MULTIPLEXER
DATA
I/O
D
L
E
B
M
O
U
R
N
C
E
COMMAND
& STATUS
OR PNP IO
TIMING
CONTROLLER
OSCR
OSC.OUT
SYSTEM CLOCK
GENERATOR
RC
OSCILLATION
PIN DESCRIPTIONS
Symbol
I/O
OPT
I/O
OSC.OUT
O
OSCR
I
RTS
I/O
RXD
I/O
R
I
M
I/O
L
I/O
X1
I
X2
I
Y1
I
Y2
I
VSS
VDD
Function
INPUT: 200kΩ pull low to VSS.
When OPT is connected to VDD, EM84530 will enter test mode. In test mode,
L will be the output of X1,while M will be the output of X2. Toggling R key can
change these output to be Y1,Y2 respectively.
The RC oscillation clock output. Or 3mA sink current output for X, Y photo
emitters.
Connect 50kΩ±1% precise resistor for oscillation.
±12V signal with 10mA driving. Used as PnP ID code output trigger signal from
100w (-12V) to high (+12V) while under normal operating. RTS will keep on
±12V driving.
One report contains 4 data bytes, 7 data bits without parity in the data byte. The data
byte is sgifted out from LSB through MSB, started by start bit and ended by stop
bit. The RXD signal swing between +6V and -6V.
Three key-switches inputs. 200kΩ resistor pull low.
Three step dynamic input impedance. If OSC.OUT is not connected to LEDs, the
dynamic input impedance will be off.
Use current comparator to measure photo-couples "ON", or "OFF".
Negative power.
Power line.
* This specification is subject to be changed without notice.
9.3.1999 2
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