CY82C693UB Cypress Semiconductor Corporation., CY82C693UB Datasheet - Page 42

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

General Purpose I/O Registers
The following registers control the operation of GPIO.
Register 90: General Purpose I/O Control Register A (Read/Write)
Register 91: General Purpose I/O Input/Output Control Register A (Read/Write)
Bit
7
6
5
4
3
2
1
0
Bit
7:6
5
4
3
2
1
0
Function
Internal Keyboard Controller GPIO Port Output Control:
0:
1:
Reserved
GPIO5 Control:
This bit value will be driven onto the GPIO5 pin if it is programmed as an output.
This bit will contain the value driven onto the GPIO5 pin if it is programmed as an input.
GPIO4 Control:
This bit value will be driven onto the GPIO4 pin if it is programmed as an output.
This bit will contain the value driven onto the GPIO4 pin if it is programmed as an input.
GPIO3 Control:
This bit value will be driven onto the GPIO3 pin if it is programmed as an output.
This bit will contain the value driven onto the GPIO3 pin if it is programmed as an input.
GPIO2 Control:
This bit value will be driven onto the GPIO2 pin if it is programmed as an output.
This bit will contain the value driven onto the GPIO2 pin if it is programmed as an input.
GPIO1 Control:
This bit value will be driven onto the GPIO1 pin if it is programmed as an output.
This bit will contain the value driven onto the GPIO1 pin if it is programmed as an input.
GPIO0 Control:
This bit value will be driven onto the GPIO0 pin if it is programmed as an output.
This bit will contain the value driven onto the GPIO0 pin if it is programmed as an input.
Function
Reserved
GPIO5 Control:
0:
1:
GPIO4 Control:
0:
1:
GPIO3 Control:
0:
1:
GPIO2 Control:
0:
1:
GPIO1 Control:
0:
1:
GPIO0 Control:
0:
1:
Internal Keyboard Controller Ports not available on outputs of the CY82C693UB.
Internal Keyboard Controller Ports available on outputs of the CY82C693UB.
Input
Output
Input
Output
Input
Output
Input
Output
Input
Output
Input
Output
PRELIMINARY
42
Index=90H
Index=91H
CY82C693UB
Default
0
0
0
0
0
0
0
0
Default
00
0
0
0
0
0
0