KSZ9563R datasheet(14/226 Pages) MICROCHIP

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KSZ9563R

DS00002419D-page 14

 2017-2018 Microchip Technology Inc.

SPI/I2C/MIIM Interface Pins

SPI/I2C/MIIM

Serial Clock

SCL/MDC

IPU

SPI/I2C Modes: SCL serial clock.

MIIM Mode: MDC serial clock.

SPI Data Out

SDO

IPD/O8

SPI Mode: Data out (also known as MISO).

I2C/MIIM Modes: Not used.

Note:

This pin also provides configuration strap func-

tions during hardware/software resets. Refer to

Section 3.2.1, "Configuration Straps" for addi-

tional information.

SPI Data In /

I2C/MIIM Data

In/Out

SDI/SDA/MDIO

IPU/O8

SPI Mode: SDI Data In (also known as MOSI).

I2C Mode: SDA Data In/Out.

MIIM Mode: MDIO Data In/Out.

SDA and MDIO are open-drain signals when in the output

state. An external pull-up resistor to VDDIO (1.0kΩ to 5kΩ)

is required.

SPI Chip Select

SCS_N

IPU

SPI Mode: Chip Select (active low).

I2C/MIIM Modes: Not used.

LED Pins

Port 1

LED Indicator 0

LED1_0

IPU/O8

Port 1 LED Indicator 0.

Active low output sinks current to light an external LED.

Note:

This pin also provides configuration strap func-

tions during hardware/software resets. Refer to

Section 3.2.1, "Configuration Straps" for addi-

tional information.

Port 1

LED Indicator 1

LED1_1

IPU/O8

Port 1 LED Indicator 1.

Active low output sinks current to light an external LED.

Note:

This pin also provides configuration strap func-

tions during hardware/software resets. Refer to

Section 3.2.1, "Configuration Straps" for addi-

tional information.

Port 2

LED Indicator 0

LED2_0

IPU/O8

Port 2 LED Indicator 0.

Active low output sinks current to light an external LED.

Note:

This pin also provides configuration strap func-

tions during hardware/software resets. Refer to

Section 3.2.1, "Configuration Straps" for addi-

tional information.

Port 2

LED Indicator 1

LED2_1

IPU/O8

Port 2 LED Indicator 1.

Active low output sinks current to light an external LED.

Note:

This pin also provides configuration strap func-

tions during hardware/software resets. Refer to

Section 3.2.1, "Configuration Straps" for addi-

tional information.

TABLE 3-2:

PIN DESCRIPTIONS (CONTINUED)

Name

Symbol

Buffer

Type

Description

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