SC84510 ETC, SC84510 Datasheet - Page 12

• Manufacturer Part Number: SC84510
• Description: PS/2 SCROLLING MOUSE CONTROLIER
• Manufacturer: ETC

(C) Exiting Microsoft scrolling mode:
(A) Photo couples input: Z-axis counter accumulates the Z1, Z2 phase changed by movement. This mode
(B) Key-switches input: Pressing Z1, Z2 will start to fill the Z-axis counter with the value beginning at one.
(C) Voltage-sensing mode: There are 7 voltage levels in Z1, Z2 input. The transmission table is the same as key-
(D) Mechanical mode: The function is the same as photo couples input mode, except there is no noise immunity.
includes noise immunity.
Toggling “M” key can increase the value any time by one. The limit value is 7.
switch mode. The relationship between the value of Z-axis counter and the voltage as follows:
There are two ways to exit:
(a) Power off.
(b)Reset command (FF).
Z/1: 1 dot per count.
Z/4: 4 dots per count. Counted by Z1=1, Z2=1 phase, the wheel should stay at Z1=0, Z2=0 phase.
The relationship between the value and the transmission rate as follow:
Z/1: 1 dot per count.
Z/2: 2 dots per count. Counted by Z2 changing phase.
Under V
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Silan
Semiconductors
DD
= 5V condition
1
2
3
4
5
6
7
0
1
2
3
4
5
6
7
12
1.0V – 1.6V
1.6V – 2.2V
2.8V – 3.4V
3.4V – 4.0V
4.0V – 4.6V
2.2V - 2.8V
4.6V
1V
12.8
2.7
6.4
9.2
15
18
20
Rev: 1.0
2000.12.31