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| 型號： | TPS2383PM |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | OCTAL POWER SOURCING EQUIPMENT POWER MANAGER |
| 中文描述： | 八路供電設備電源管理器 |
| 文件頁數(shù)： | 17/27頁 |
| 文件大?。?/td> | 394K |
| 代理商： | TPS2383PM |
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SLUS559B APRIL 2003 REVISED JULY 2004
17
www.ti.com
FUNCTIONAL DESCRIPTION
Port Status Registers
The Port Status registers (address 001) contain portspecific information regarding the operational or faulted
state of each of the eight Ethernet ports, as shown in Tables 4 and 5. In addition, the Port 1 Status register
(Register/Port address xx00/1000) bits D6:D3 contain the current usage information of some of the common
hardware resources, as they are accessed in the servicing of the port presently selected by the master
sequencer.
Table 4.
Port Status Port 1
Read Register, Register Address =
001
, Port Address =
000
BIT
FUNCTION
STATE
PRESET
STATE
D7
Port service
0
= Port not selected
1
= Port selected and being serviced
0
D6
Down
0
= Selected port is being ramped up
1
= Selected port is not being ramped up
1
D5
Ramp ServiceB
0
= Selected port is using the RAMP module
1
= Selected port is not using the RAMP module
1
D4
Current SampleB
0
= Selected port current is being acquired
1
= Selected port current is not being acquired
1
D3
A to D ServiceB
0
= Discovery/classification data acquisition in process
1
= A/D not performing discovery/classification
1
D2
Fault status (MSB)
000
= Reset state
001
= UV/OV fault/spike
010
= UV/OV spike
011
= Peak overcurrent fault
100
= Overload fault
101
= Discovery Fail
110
= Load disconnect
111
= Reserved for future
D1
Fault status
000
D0
Fault status (LSB)
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