CY82C693UB Cypress Semiconductor Corporation., CY82C693UB Datasheet - Page 108

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

System to Controller Command Set. (continued) These commands are executed by writing them to the input register through
I/O port 064H. If data is accompanied with the command, it must be read/written to I/O port 060H.
Controller to System Command Set. These commands are written from the controller to the output register. They must be read
by the system performing an I/O read to address 60H.
Command
D0H
D1H
D2H
D3H
D4H
E0H
EXH
F0H–FFH
Command
55H
F1H
FAH
FEH
Description
Read controller’s output port:
This command will cause the controller to read its output port and place the contents into the controller’s input
buffer.
Write controller’s output port:
This command will cause the controller to take the next data that is written to 60H and place it into the
controller’s output port.
Write keyboard output buffer:
This command will cause the controller to take the next data that is written to 60H and place it into the
controller’s output buffer.
Write mouse output buffer:
This command will cause the controller to take the next data that is written to 60H and place it into the
controller’s mouse output buffer.
Write to mouse:
This command will cause the controller to take the next data that is written to 60H and transmit it to the mouse.
Read Test Inputs:
T0 and T1 (KBCLK and KBDATA inputs) are read by the controller and placed in the output buffer.
Bit 0 represents T0 and bit 1 represents T1.
Active Output Port Flag:
Bits 1, 2, and 3 of the output buffer represent the active output port.
Pulse Output Port:
This command will cause bits 3 through 0 in the controller’s output port to pulse low for 6 µs based on the
command. A 0 in bits 3 through zero will select the bits to be pulsed.
Description
No error detected upon completion of self-test:
This command will appear in the output register in response to a successful completion of the self-test initiated
by system command AAH.
No password installed:
This command will appear in the output register in response to no password detection initiated by system
command A4H.
Password installed:
This command will appear in the output register in response to a password detection initiated by system
command A4H.
Resend Command:
This command will appear in the output register in response to an illegal command.
PRELIMINARY
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