KSZ8862-100FX-EVAL Просмотр технического описания (PDF) - Micrel

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KSZ8862-100FX-EVAL

2-Port Ethernet Switch with Non-PCI Interface and Fiber Support

Micrel 

Micrel, Inc.

KSZ8862-16/32MQL

Pin

Number

16

Pin Name

INTRN

17

LDEVN

18

RDN

19

EECS

20

ARDY

21

CYCLEN

22

P2LED3

23

DGND

24

VDDCO

25

VLBUSN

26

EEEN

27

P1LED3

28

EEDO

29

EESK

30

EEDI

31

SWR

32

AEN

33

WRN

August 2010

Type

Opd

Opd

Ipd

Opu

Opd

Ipd

Opd

Gnd

P

Ipd

Ipd

Opd

Opd

Opd

Ipd

Ipd

Ipu

Ipd

Pin Function

Interrupt

Active Low signal to host CPU to indicate an interrupt status bit is set, this pin need an

external 4.7K pull-up resistor.

Local Device Not

Active Low output signal, asserted when AEN is Low and A15-A4 decode to the

KSZ8862M address programmed into the high byte of the base address register. LDEVN

is a combinational decode of the Address and AEN signal.

Read Strobe Not

Asynchronous read strobe, active Low.

EEPROM Chip Select

Asynchronous Ready

ARDY may be used when interfacing asynchronous buses to extend bus access cycles.

It is asynchronous to the host CPU or bus clock. This pin needs an external 4.7K pull-up

resistor.

Cycle Not

For VLBus-like mode cycle signal; this pin follows the addressing cycle to signal the

command cycle.

For burst mode (32-bit interface only), this pin stays High for read cycles and Low for

write cycles.

Port 2 LED indicator. See the description in pins 6, 7, and 8.

Digital IO ground

1.2V digital core voltage output (internal 1.2V LDO power supply output), this 1.2V output

pin provides power to VDDC, VDDA and VDDAP pins.

Note: Internally generated power voltage. Do not connect an external power supply to this

pin. This pin is used for connecting external filter (Ferrite Bead and capacitors).

VLBus-like Mode

Pull-down or float: Bus interface is configured for synchronous mode.

Pull-up: Bus interface is configured for 32-bit asynchronous mode or EISA-like burst

mode.

EEPROM Enable

EEPROM is enabled and connected when this pin is pull-up.

EEPROM is disabled when this pin is pull-down or no connect.

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 4μs serial output clock 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 pulled-down for 8-bit bus mode, pulled-up for 16-bus mode or either way

for 32-bus mode when EEEN is pulled-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.

19

M9999-081310-3.1

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