KSZ8842-16MBL-EVAL MICREL [Micrel Semiconductor], KSZ8842-16MBL-EVAL Datasheet - Page 15

• Manufacturer Part Number: KSZ8842-16MBL-EVAL
• Description: 2-Port Ethernet Switch with Non-PCI Interface
• Manufacturer: MICREL [Micrel Semiconductor]

Micrel, Inc.
October 2007
Pin Number
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
Pin Name
VDDARX
VDDATX
P1LED3
PWRDN
EEDO
DGND
AGND
AGND
AGND
AGND
AGND
ADSN
VDDA
VDDA
RXM1
RXM2
EESK
RXP1
TXM1
RXP2
TXP1
EEDI
SWR
WRN
AEN
NC
NC
NC
Type
Opd
Opd
Opd
Gnd
Gnd
Gnd
Gnd
Gnd
Gnd
Ipd
Ipd
Ipu
Ipd
Ipd
Ipu
I/O
I/O
I/O
I/O
I/O
I/O
—
—
—
P
P
P
P
Pin Function
Port 1 LED indicator
See the description in pins 3, 4, and 5.
EEPROM Data Out
This pin is connected to DI input of the serial EEPROM.
EEPROM Serial Clock
A 4
on-chip bus speed @ 125 MHz) serial output clock cycle to load configuration
data from the serial EEPROM.
EEPROM Data In
This pin is connected to DO output of the serial EEPROM when EEEN is pull-up.
This pin can be pull-down for 8-bit bus mode, pull-up for 16-bit bus mode or don’t
care for 32-bit bus mode when EEEN is pull-down (without EEPROM).
Synchronous Write/Read
Write/Read signal for synchronous bus accesses. Write cycles when high and
Read cycles when low.
Address Enable
Address qualifier for the address decoding, active Low.
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 V
Ferrite bead and capacitor.
Analog ground
No connect
No connect
Analog ground
1.2V analog V
Ferrite bead and capacitor.
No connect
Port 1 physical receive (MDI) or transmit (MDIX) signal (+ differential)
Port 1 physical receive (MDI) or transmit (MDIX) signal (– differential)
Analog ground
Port 1 physical transmit (MDI) or receive (MDIX) signal (+ differential)
Port 1 physical transmit (MDI) or receive (MDIX) signal (– differential)
3.3V analog V
3.3V analog V
Port 2 physical receive (MDI) or transmit (MDIX) signal (- differential)
Port 2 physical receive (MDI)or transmit (MDIX) signal (+ differential)
Analog ground
µ
s (OBCR[1:0]=11 on-chip bus speed @ 25 MHz) or 800 ns (OBCR[1:0]=00
DD
DD
DD
DD
input power supply from VDDCO (pin24) through external
input power supply from VDDCO (pin24) through external
input power supply with well decoupling capacitors.
input power supply with well decoupling capacitors.
15
KSZ8842-16/32 MQL/MVL/MVLI/MBL
M9999-102207-1.9