RSM84510 ETC, RSM84510 Datasheet - Page 2

• Manufacturer Part Number: RSM84510
• Description: PS/2 Scrolling Mouse Controller
• Manufacturer: ETC

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DataSheet
4
PIN DESCRIPTIONS
FUNCTIONAL BLOCK DIAGRAM
*WUXI RISONG MICRO ELECTRONIC CO.,LTD
U
9/10/11
.com
Pin
16
12
13
14
15
7
2
5
6
3
4
8
1
OPT
X1
X2
Y1
Y2
L
M
R
OSC.OUT
Symbol
R/M/L
OSCR
DATA
VDD
CLK
OPT
VSS
X1
X2
Y1
Y2
Z1
Z2
Z1
Z2
C
O
M
P
A
R
A
T
O
R
D
E
B
O
U
N
C
E
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M E
O T
T E
I C
O T
N O
D
R
I/O
I/O
I/O
I/O
O
I
I
I
I
OSC.OUT
OSCR
INPUT:200kohm pull low to VSS.
When OPT is connected to VDD, RSM84510 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, or Z1, Z2
respectively.
OUTPUT:2kHz Z-axis LED driving source.
“1”=VDD, “0”=floating
High duty is about 60us.
RC mode oscillation with 51kohm resistor.
Connect to 8042 auxiliary port CLK line.
Connect to 8042 auxiliary port DATA line.
Three key-switches inputs.
200kohm resistor pull low.
Three step dynamic input impedance.
Use current comparator to measure photo-couples “ON”,or“OFF”.
Z-axis inputs.
Photo mode: Three step dynamic input impedance. Current comparator
input.
Key mode: 200kohm resistor pull low. 7 levels increased by “M”key.
Voltage mode: 200kohm resistor pull low.7 levels voltage comparator.
Mechanical mode: 13.2kohm resistor pull low.
Ground
Power
COMPARATOR
COUNTER
THREE TYPES SELECTOR
Z-
SYSTEM CLOCK
PS/2 SCROLLING MOUSE CONTROLLER
OSCILLATION
AXIS COUNTER
GENERATOR
VOLTAGE
SENSOR
COMMON
STATUS
RC
Function
MULTIPLEXER
KEY-SWITCH
DETECTOR
31/05/02
CONTROLLER
TIMING
DATA
DATA I/O
RSM84510
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