PD64012 datasheet(7/16 Pages) ETC

7 / 16 page

PD64012

12-CHANNEL PoE MANAGER

PIN NAME

PIN TYPE

PIN DESCRIPTION

51. AGND

Supply

Analog ground

52. PORT_SENSE5

Analog I/O

Channel current monitoring

53. VPORT_NEG4

Analog I/O

Port 4 negative voltage feeding

54. PORT_SENSE4

Analog I/O

Channel current monitoring

55. VPORT_NEG3

Analog I/O

Port 3 negative voltage feeding

56. PORT_SENSE3

Analog I/O

Channel current monitoring

57. PORT_SENSE2

Analog I/O

Channel current monitoring

58. VPORT_NEG2

Analog I/O

Port 2 negative voltage feeding

59. PORT_SENSE1

Analog I/O

Channel current monitoring

60. VPORT_NEG1

Analog I/O

Port 1 negative voltage feeding

61. PORT_SENSE0

Analog I/O

Channel current monitoring

62. SENSE_NEG

Analog I/O

Port sense reference

63. VPORT_NEG0

Analog I/O

Port 0 negative voltage feeding

64. Reserved

TBD

Not connected

Functional Description ________

Operational Modes

The PD64012 supports two main modes of operation,

based on two different architectures, as described

hereafter. The two modes are: Enhanced mode and

Automatic mode.

Enhanced mode – in this mode of operation, the

PD64012s communicate with the PD63000 PoE

MCU (dedicated MCU for Power over Ethernet

tasks), through a Serial Parallel Interface (SPI) bus.

In this mode, all PD64012s are directly connected to

the PD63000 through the SPI, in slave mode. The

MCU is used for additional Power over Ethernet

features, such as:

♦ Legacy PDs detection (including Cisco discovery)

♦ Enhanced power management algorithms

♦ LED indicators support

♦ Port matrix control

♦ Communication protocol translator.

The

switch host

CPU

communicates

with

the

PD63000, via an isolated I

2C or UART bus, as shown

in Figure 3.

PD64012

#00

PD64012

#01

PD64012

#10

PD64012

#11

MISO

SCK

MOSI

I/O Opto

Host

CPU

CS0_N

CS1_N

CS0_N

CS1_N

CS0_N

CS1_N

CS0_N

CS1_N

CS3

CS2

CS1

CS0

I2C or UART

SPI Bus

PD63000

PoE MCU

Pull-down

resistor

Figure 3: Enhanced Mode

www.powerdsine.com

Information in this document subject

06-0003-058 (Rev. 2.8) / 5 August 2004

to change without prior notice.

PD64012 bảng dữ liệu(PDF) 7 Page - List of Unclassifed Manufacturers

PD64012 bảng dữ liệu(HTML) 7 Page - List of Unclassifed Manufacturers

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

bảng dữ liệu tải về

Link URL