KSZ8862-16_10 Datasheet, PDF (14/125 Pages) Micrel Semiconductor – 2-Port Ethernet Switch with Non-PCI Interface and Fiber Support

Micrel, Inc.
KSZ8862-16/32MQL
Pin
Number
33
Pin Name
WRN
34
DGND
35
ADSN
36
PWRDN
37
AGND
38
VDDA
39
AGND
40
NC
41
100FX/10FL
42
AGND
43
VDDA
44
FXSD1
45
RXP1
46
RXM1
47
AGND
48
TXP1
49
TXM1
50
VDDATX
51
VDDARX
52
RXM2
53
RXP2
54
AGND
55
TXM2
56
TXP2
57
VDDA
58
AGND
59
NC
60
NC
61
ISET
62
AGND
63
VDDAP
64
AGND
Type
Ipd
Gnd
Ipd
Ipu
Gnd
P
Gnd
—
Ipu
Gnd
P
I
I/O
I/O
Gnd
I/O
I/O
P
P
I/O
I/O
Gnd
I/O
I/O
P
Gnd
Ipu
Ipu
O
Gnd
P
Gnd
Pin Function
Write Strobe Not
Asynchronous write strobe, active Low.
Digital IO ground
Address Strobe Not
For systems that require address latching, the rising edge of ADSN indicates the
latching moment of A15-A1 and AEN.
Full-chip power-down. Low = Power down; High or floating = Normal operation.
Analog ground
1.2V analog VDD input power supply from VDDCO (pin24) through external Ferrite
bead and capacitor.
Analog ground
No connect
Fiber mode select for port 1. 1K ohm pull-up to 3.3V for 100Base-FX, 100 ohm pull-
down to GND for 100Base-SX or 10Base-FL.
Analog ground
1.2V analog VDD input power supply from VDDCO (pin24) through external Ferrite
bead and capacitor.
Fiber signal detect input for port 1 in 100Base-FX fiber mode. 1K ohm pull-up to 3.3V
for port 1 in 100Base-SX or 10Base-FL fiber modes.
Port 1 physical receive (MDI) signal (+ differential) from external fiber module
Port 1 physical receive (MDI) signal (– differential) from external fiber module
Analog ground
Port 1 physical transmit (MDI) signal (+ differential) to external fiber module
Port 1 physical transmit (MDI) signal (– differential) to external fiber module
3.3V analog VDD input power supply with well decoupling capacitors.
3.3V analog VDD input power supply with well decoupling capacitors.
Port 2 physical receive (MDI) or transmit (MDIX) signal (- differential)
Port 2 physical receive (MDI) or transmit (MDIX) signal (+ differential)
Analog ground
Port 2 physical transmit (MDI) or receive (MDIX) signal (- differential)
Port 2 physical transmit (MDI) or receive (MDIX) signal (+ differential)
1.2 analog VDD input power supply from VDDCO (pin24) through external Ferrite
bead and capacitor.
Analog ground
No connect
No connect
Set physical transmits output current.
Pull-down this pin with a 3.01K 1% resistor to ground.
Analog ground
1.2V analog VDD for PLL input power supply from VDDCO (pin24) through external
Ferrite bead and capacitor.
Analog ground
August 2010
14
M9999-081310-3.1