参数资料
型号: MAX5952CUAX+
厂商: Maxim Integrated
文件页数: 27/50页
文件大小: 1006K
描述: IC PSE CNTRLR FOR POE 36-SSOP
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 30
类型: 以太网供电控制器(PoE)
应用: 远程外设(工业控制,相机,数据访问)
内部开关:
工作温度: 0°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 36-BSOP(0.295",7.50mm 宽)
供应商设备封装: 36-SSOP
包装: 管件
High-Power, Quad, PSE Controller
for Power-Over-Ethernet
______________________________________________________________________________________   27
The power event register (Table 8) records changes in
the power status of the four ports. Any change in
PGOOD_ (R10h[7:4]) sets PG_CHG_ to 1. Any change
in the PWR_EN_ (R10h[3:0]) sets PWEN_CHG_ to 1.
PG_CHG_ and PWEN_CHG_ trigger on the edges of
PGOOD_ and PWR_EN_ and do not depend on the
actual level of the bits. The power event register has
two addresses. When read through the R02h address,
the content of the register is left unchanged. When read
through the CoR R03h address, the register content is
cleared. A reset sets R02h/R03h = 00h.
Table 8. Power Event Register
ADDRESS =
02h
03h
SYMBOL
BIT
R/W
R/W
DESCRIPTION
PG_CHG4
7
R
CoR
PGOOD change event for port 4
PG_CHG3
6
R
CoR
PGOOD change event for port 3
PG_CHG2
5
R
CoR
PGOOD change event for port 2
PG_CHG1
4
R
CoR
PGOOD change event for port 1
PWEN_CHG4
3
R
CoR
Power enable change event for port 4
PWEN_CHG3
2
R
CoR
Power enable change event for port 3
PWEN_CHG2
1
R
CoR
Power enable change event for port 2
PWEN_CHG1
0
R
CoR
Power enable change event for port 1
Table 9. Detect Event Register
ADDRESS =
04h
05h
SYMBOL
BIT
R/W
R/W
DESCRIPTION
CL_END4
7
R
CoR
Classification completed on port 4
CL_END3
6
R
CoR
Classification completed on port 3
CL_END2
5
R
CoR
Classification completed on port 2
CL_END1
4
R
CoR
Classification completed on port 1
DET_END4
3
R
CoR
Detection completed on port 4
DET_END3
2
R
CoR
Detection completed on port 3
DET_END2
1
R
CoR
Detection completed on port 2
DET_END1
0
R
CoR
Detection completed on port 1
DET_END_/CL_END_ is set high whenever detection/
classification is completed on the corresponding port. A
1 in any of the CL_END_ bits forces R00h[4] to 1. A 1 in
any of the DET_END_ bits forces R00h[3] to 1. As with
any of the other events register, the detect event regis-
ter has two addresses. When read through the R04h
address, the content of the register is left unchanged.
When read through the CoR R05h address, the register
content is cleared. A reset sets R04h/R05h = 00h.
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