參數(shù)資料
型號: μPD9210FGC-7EA
廠商: NEC Corp.
英文描述: USB Host Controller(USB主控制器)
中文描述: USB主機控制器(的USB主控制器)
文件頁數(shù): 15/95頁
文件大?。?/td> 423K
代理商: ΜPD9210FGC-7EA
15
CHAPTER 1 FEATURES
1.1 Features
(1) Functions
Complies with
OpenHCI Specification Release 1.0
and
OpenHCI Legacy Support Interface Specification
Release Version 1.01
.
Supports asynchronous communication between host CPU and USB devices.
Supports two types of USB devices: full speed (12 Mbps) devices and low speed (1.5 Mbps) devices.
System clock: 48 MHz
(2) Interface
USB interface transceiver
Complies with
Universal Serial Bus Specification Revision 1.0
.
Switchable between full speed (12 Mbps) and low speed (1.5 Mbps) modes.
PCI interface buffer
Complies with
PCI Local Bus Specification Revision 2.1
and
PCI Mobile Design Guide Revision 1.0
.
Supports 32-bit, 33-MHz, 5-VPCI/3.3-VPCI operation.
(3) Communication with host CPU
Communicates via Operational Registers built into USB host controller
Communicates via the Host Controller Communication Area in the system memory space
(4) Memory and I/O space
Maps to 4-Kbyte space within the 4-Gbyte system memory space.
256-byte Host Controller Communication Area is allocated in the system memory space.
The legacy support register is allocated to 60h/64h in the I/O space.
(5) Legacy support
USB keyboard + USB mouse, USB keyboard + legacy mouse
Legacy keyboard + USB mouse, legacy keyboard + legacy mouse
(6) On-chip FIFO
PCI side
Read: 16 bytes (4
×
4 Dwords), Write: 16 bytes (4
×
4 Dwords)
USB side
64 bytes (64
×
1 byte)
(7) Root Hub
Equipped with two downstream ports
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