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參數資料
| 型號： | 82C862 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | FireLink USB Dual Controller Quad Port USB |
| 中文描述： | FireLink雙控制器的USB四口USB |
| 文件頁數： | 15/51頁 |
| 文件大小： | 321K |
| 代理商： | 82C862 |
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FireLink USB
82C862
912-2000-030
Revision 1.0
Page 11
3.3.7 Strap Options
The 82C862 component offers several operating mode choices at power-up time. These choices are selected through a strap
resistor that pulls the related pin either up or down to the required level. A 4.7k ohm resistor is recommended.
Table 2.
Strap Selected Options
Pin
Mode
PWRON3#
Enable/Disable Second Host
1
Enable Second USB Host Controller (Function 1) [DEFAULT]
0
Disable Second USB Host Controller. All clocks going to the logic for the second host are stopped to
reduce power consumption.
TEST0
TEST1
Mode Operation
0
0
PLL Operational Mode using 12 MHz crystal on X1 and X2 [DEFAULT]
0
1
48 MHz clock Operation Mode. X1 connects to 48 MHz clock, X2 no-connect.
1
1
NAND Tree test mode
1
0
Tristate test mode
SMI#
PCI Power Management PME# function / Reference USB clock
0
PME# becomes 48 MHz reference clock output from PLL. Used for testing PLL. Also disables PCI power
management, PCICFG 06h[4] = 0.
1
Enables PME# function and PCI power management, PCICFG 06h[4]=1. [DEFAULT]
PWRON2#
Global/Individual Power Control
1
Individual PWRON# and PWRFLT# for each port: [DEFAULT]
HcRhDescA NoPowerSwitching=0 (MEMOFST 49h[1])
HcRhDescA PowerSwitchingMode=1 (MEMOFST 49h[0])
HcRhDescB PortPowerControlMask bit1,bit2=1,1 (MEMOFST4Eh[1,2])
HcRhDescA NoOvercurrentProtection=0 (MEMOFST 49h[4])
HcRhDescA OvercurrentProtectionMode=1 (MEMOFST 49h[3]])
0
Global PWRON# and PWRFLT# for each port:
HcRhDescA NoPowerSwitching=0 (MEMOFST 49h[1])
HcRhDescA PowerSwitchingMode=0 (MEMOFST 49h[0])
HcRhDescB PortPowerControlMask bit1,bit2=0,0 (MEMOFST4Eh[1,2])
HcRhDescA NoOvercurrentProtection=0 (MEMOFST 49h[4])
HcRhDescA OvercurrentProtectionMode=0 (MEMOFST 49h[3]])
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