CY82C693UB Cypress Semiconductor Corporation., CY82C693UB Datasheet - Page 137

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

USB Host Controller Operational Registers
The USB Host Controller Operational Registers are accessed
using memory-mapped I/O. The address of each operational
register is given by the Base Address (specified in the Base
Register 0: HcRevision (Read Only) - Offset=00H with a 32-bit access
Register 1: HcControl (Read/Write) - Offset=04H with a 32-bit access
Bit
31:8
7:0
Bit
31:11
10
9
8
7:6
5
4
3
2
1:0
Function
Reserved.
Revision Number. Indicates the OpenHCI Specification revision number implemented by the
hardware.
Function
Reserved.
Remote Wakeup Connected Enable:
If a remote wakeup signal is supported, this bit is used to enable that operation. Since there
is no remote wakeup signal supported, this bit is ignored.
Remote Wakeup Connected:
This Read Only bit indicated whether the Host Controller supports a remote wakeup signal.
This implementation does not support any such signal. The bit is hard-coded to 0.
Interrupt Routing:
This bit is used for interrupt routing:
0:
1:
Host Controller Functional State:
This field is used to set the Host Controller state. The state encoding are:
00:
01:
10:
11:
The USB Host Controller may force a state change from USBSuspend to USBResume after
detecting resume signaling from a downstream port.
Bulk List Enable:
When set this bit enables processing of the Bulk list.
Control List Enable:
When set this bit enables processing of the Control list.
Isochronous Enable:
When cleared, this bit disables the Isochronous List when the Periodic List is enabled (so
Interrupt EDs may be serviced). While processing the Periodic List, the Host Controller will
check this bit when it finds an isochronous ED.
Periodic List Enable:
When set, this bit enables processing of the Periodic (interrupt and isochronous) list. The
Host Controller checks this bit prior to attempting any periodic transfer in a frame.
Control Bulk Service Ratio:
Specifies the number of Control Endpoints serviced for every Bulk Endpoint. Encoding is N 1
where N is the number of Control Endpoints (i.e., ‘00’ = 1 Control Endpoint; ‘11’ = 4 Control
Endpoints).
Interrupt routed to normal interrupt mechanism (INT)
Interrupt routed to SMI
USBReset
USBResume
USBOperational
USBSuspend
PRELIMINARY
137
Address Register in the USB Host Controller PCI Configura-
tion Registers) and the offset value of the register.
CY82C693UB
Default
000000H
10H
Default
0H
0
0
0
00
0
0
0
0
00