KS8995FQ Ver la hoja de datos (PDF) - Micrel

Número de pieza

componentes Descripción

Fabricante

KS8995FQ

Integrated 5-Port 10/100 Managed Switch

Micrel 

Micrel, Inc.

KS8995MA/FQ

Pin Description − By Numbers (Continued)

Pin Number Pin Name Type(1) Port Pin Function

92

LED5-0

Ipu/O

5 LED indicator 0.

93

LED4-2

Ipu/O

4 LED indicator 2.

94

LED4-1

Ipu/O

4 LED indicator 1.

95

LED4-0

Ipu/O

4 LED indicator 0.

96

LED3-2

Ipu/O

3 LED indicator 2.

97

LED3-1

Ipu/O

3 LED indicator 1.

98

LED3-0

Ipu/O

3 LED indicator 0.

99

GNDD

GND

Digital ground.

100

VDDIO

P

3.3V digital VDD for digital I/O.

101

LED2-2

Ipu/O

2 LED indicator 2.

102

LED2-1

Ipu/O

2 LED indicator 1.

103

LED2-0

Ipu/O

2 LED indicator 0.

104

LED1-2

Ipu/O

1 LED indicator 2.

105

LED1-1

Ipu/O

1 LED indicator 1.

106

LED1-0

Ipu/O

1 LED indicator 0.

107

MDC

Ipu

All Switch or PHY[5] MII management data clock.

108

MDIO

I/O

All

Switch or PHY[5] MII management data I/O.

Features internal pull down to define pin state when not driven.

109

SPIQ

Otri

All

(1) SPI serial data output in SPI slave mode; (2) output clock at 61kHz in I2C master

mode. See “Pin 113.”

110

SPIC/SCL

I/O

All

(1) Input clock up to 5MHz in SPI slave mode; (2) output clock at 61kHz in I2C master

mode. See “Pin 113.”

111

SSPID/SDA

I/O

All

(1) Serial data input in SPI slave mode; (2) serial data input/output in I2C master

mode. See “Pin 113.”

Active low. (1) SPI data transfer start in SPI slave mode. When SPIS_N is high, the

112

SPIS_N

Ipu

All KS8995MA/FQ is deselected and SPIQ is held in high impedance state, a high-to-low

transition to initiate the SPI data transfer; (2) not used in I2C master mode.

Serial bus configuration pin. For this case, if the EEPROM is not present, the

KS8995MA/FQ will start itself with the PS[1.0] = 00 default register values.

113

PS1

Ipd

Pin Configuration

PS[1.0]=00

PS[1.0]=01

Serial Bus Configuration

I2C Master Mode for EEPROM

Reserved

PS[1.0]=10

SPI Slave Mode for CPU Interface

PS[1.0]=11

Factory Test Mode (BIST)

Note:

1.

P = Power supply.

I = Input.

O = Output.

I/O = Bidirectional.

GND = Ground.

Ipu = Input w/internal pull-up.

Ipd = Input w/internal pull-down.

Ipd/O = Input w/internal pull-down during reset, output pin otherwise.

Ipu/O = Input w/internal pull-up during reset, output pin otherwise.

NC = No connect.

October 2011

18

M9999-102611-3.0

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