SPEAR320S datasheet(39/113 Pages) STMICROELECTRONICS

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SPEAr320S

Pin description

Doc ID 022508 Rev 2

39/113

Mode 2: MII automation networking mode

In this example, MII automation networking operating mode provides the following features

with Mode 2 selected and alternate functions for UART0, MII0, SSP0, I2C0 enabled. Other

feature combinations are possible using different alternate functions.

●

NAND Flash interface (8 bits, 4 chip selects)

●

2 CAN 2.0 interfaces

●

2 MII interfaces

●

7 UARTs

–

1 with hardware flow control (up to 3 Mbps)

–

6 with software flow control (baud rate up to 7 Mbps)

●

3 independent SSP synchronous serial ports (SPI, Microwire or TI protocol) with 3

independent CS.

●

2 independent I2C interfaces

●

GPIOs with interrupt capability

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SDIO interface supporting SPI, SD1, SD4 and SD8 mode

Mode 3: Expanded automation mode

In this example, Expanded automation operating mode provides the following features with

Mode 3 selected and alternate functions for MII0, UART0, I2C0 and SSP0 enabled. Some

features are mutually exclusive. Note that if UART0 alternate functions with software flow

control are enabled, UART3/4/5 are available, but not if UART0 alternate functions are

enabled with hardware flow control. If SSP0 alternate functions are enabled, PWM0/1/2/3

are not available. This is also the case for EMI with respect to the NAND Flash interface

(FSMC). Other feature combinations are possible using different alternate functions.

●

External memory interface (16 data bits, 24 address bits and 4 chip selects)

●

FSMC NAND Flash interface (8-16 bits and 4 chip selects shared with EMI)

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2 CAN 2.0 interfaces

●

MII interface

●

6 UARTs

–

1 with hardware flow control (up to 3 Mbps)

–

1 with hardware flow control (baud rate up to 7 Mbps)

–

4 with software flow control (baud rate up to 7 Mbps)

●

1 SSP port

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2 independent I2C interfaces

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Up to 4 PWM outputs

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GPIOs with interrupt capabilities

SPEAR320S 数据表(PDF) 39 Page - STMicroelectronics

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