參數(shù)資料
型號(hào): VT8231
廠商: Electronic Theatre Controls, Inc.
元件分類: 晶體
英文描述: CRYSTAL 8.00MHZ 18PF SMD
中文描述: 南橋伏特,PC99柔順
文件頁數(shù): 88/132頁
文件大小: 1210K
代理商: VT8231
VT8231
Preliminary Revision 0.8
October 29, 1999
-
82-
Function 3 Registers - USB Controller Ports 2-3
7HFKQRORJLHV,QF
:H &RQQHFW
Offset 42 - FIFO Control .................................................. RW
7-4
Reserved
........................................ always reads 0
3-2
Reserved (Do Not Program)
.................... default = 0
1-0
Release Continuous REQ After
N
PCICLKs
00 Do Not Release ........................................... def
01 N = 32 PCICLKs
10 N = 64 PCICLKs
11 N = 96 PCICLKs
Offset 60 - Serial Bus Release Number ............................ RO
7-0
Release Number
.............................. always reads 10h
Offset 83-80
PM Capability ........................................... RO
31-0 PM Capability
.................... always reads 00020001h
Offset 84
PM Capability Status .................................... RW
7-0
PM Capability Status
.......supports 00h and 11h only
Offset C1-C0 - Legacy Support ........................................ RO
15-0 UHCI v1.1
Compliant
................ always reads 2000h
USB I/O Registers
These registers are compliant with the UHCI v1.1 standard.
Refer to the UHCI v1.1 specification for further details.
I/O Offset 1-0 - USB Command
I/O Offset 3-2 - USB Status
I/O Offset 5-4 - USB Interrupt Enable
I/O Offset 7-6 - Frame Number
I/O Offset B-8 - Frame List Base Address
I/O Offset 0C - Start Of Frame Modify
I/O Offset 11-10 - Port 0 Status / Control
I/O Offset 13-12 - Port 1 Status / Control
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