CY82C693UB Cypress Semiconductor Corporation., CY82C693UB Datasheet - Page 110

• Manufacturer Part Number: CY82C693UB
• Description: Hypercache Tm / Stand-alone Pci Peripheral Controller With Usb
• Manufacturer: Cypress Semiconductor Corporation.

System to Mouse Controller Command Set. These commands are specific to the mouse controller. The system must first
send command D4H to I/O port 64H to tell the controller that the next command is intended for the mouse controller. If D4H is
not sent, the controller will interpret the commands as Keyboard commands.
Command
E6H
E7H
E8H
E9H
EAH
EBH
ECH
EEH
F0H
F2H
Description
Reset mouse scaling:
This command will cause scaling to be reset to 1:1.
Set scaling:
When the mouse is in Stream Mode, this command will convert Input X,Y coordinates to outputs as follows:
Input
0
1
2
3
4
5
6 or greater
Set Resolution:
This is a two byte command. The first byte is E8H (sent to port 64H) to tell the mouse controller to set its
resolution. The second byte is data (sent to port 60H). The data must be in one of the following combinations:
Data Byte Value Resolution
00H
01H
02H
03H
Status Request:
In response to this command, the mouse will send a three byte status report. The first byte is the sampling
rate. The second byte is the resolution, and the third byte is defined as follows:
Bit
7
6
5
4
3
2
1
0
Set Stream Mode:
When Stream Mode is selected, the mouse transmits data every time the mouse detects a unit of movement
or a mouse button pressed. If no button is pressed or the mouse does not detect movement, no data will be
transmitted.
Read Mouse Data:
This command will force the mouse to transmit one packet of mouse data.
Reset Wrap Mode:
This command takes the mouse out of wrap mode (the mouse will not echo data back to the system).
Set Wrap Mode:
This command puts the mouse in wrap mode (the mouse will echo data back to the system).
Set Remote Mode:
In Remote Mode, mouse data will only be transmitted in response to a Read Mouse Data command.
Read device type:
The mouse will return 00H (type ID for mouse) in response to this command.
Output
0
1
1
3
6
9
Input x 2
1 count/mm
2 counts/mm
4 counts/mm
8 counts/mm
Description
Reserved
0: Stream Mode
0: Mouse Disabled
0: Scaling 1:1
Reserved
0: Left mouse button not pressed
Reserved
0: Right mouse button not pressed
PRELIMINARY
1: Scaling 2:1 (Defined by Set Scaling command)
1: Remote Mode
1: Mouse Enabled
110
1: Left mouse button pressed
1: Right mouse button pressed.
CY82C693UB