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| 型号： | EVAL-ADUC7060QSPZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 91/100页 |
| 文件大小： | 0K |
| 描述： | KIT DEV QUICK START ADUC7060 |
| 产品变化通告： | ADuC7060/1 Idd Specification Change 01/Feb/2010 |
| 设计资源： | ADUC7060 Gerber Files EVAL-ADuC7060 schematic |
| 标准包装： | 1 |
| 系列： | QuickStart™ PLUS 套件 |
| 类型： | MCU |
| 适用于相关产品： | ADuC7060 |
| 所含物品： | 评估板、电源、缆线、软件、仿真器和说明文档 |
| 其它名称： | Q5189809 |
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ADuC7060
SERIAL PERIPHERAL INTERFACE
The ADuC7060 integrates a complete hardware serial
peripheral interface (SPI) on-chip. SPI is an industry standard,
synchronous serial interface that allows eight bits of data to be
synchronously transmitted and simultaneously received, that is,
full duplex up to a maximum bit rate of 5.12 Mb.
The SPI port can be configured for master or slave operation
and typically consists of four pins: MISO, MOSI, SCL, and SS.
MISO (MASTER IN, SLAVE OUT) PIN
The MISO pin is configured as an input line in master mode
and an output line in slave mode. The MISO line on the master
(data in) should be connected to the MISO line in the slave
device (data out). The data is transferred as byte wide (8-bit)
serial data, most significant bit first.
MOSI (MASTER OUT, SLAVE IN) PIN
The MOSI pin is configured as an output line in master mode
and an input line in slave mode. The MOSI line on the master
(data out) should be connected to the MOSI line in the slave
device (data in). The data is transferred as byte wide (8-bit)
serial data, most significant bit first.
SCL (SERIAL CLOCK I/O) PIN
In slave mode, the SPICON register must be configured with
the phase and polarity of the expected input clock. The slave
accepts data from an external master up to 5.12 Mb.
In both master and slave modes, data transmit on one edge of
the SCL signal and sample on the other. Therefore, it is
important that the polarity and phase be configured the same
for the master and slave devices.
SLAVE SELECT (P0.0/SS) INPUT PIN
In SPI slave mode, a transfer is initiated by the assertion of SS
on the P0.0/SS pin, which is an active low input signal. The SPI
port then transmits and receives 8-bit data until the transfer is
concluded by deassertion of SS. In slave mode, SS is always an
input.
In SPI master mode, SS is an active low output signal. It asserts
itself automatically at the beginning of a transfer and deasserts
itself upon completion.
CONFIGURING EXTERNAL PINS FOR SPI
FUNCTIONALITY
The SPI pins of the ADuC7060 device are represented by the
P0[0:3] funtion of the following pins:
The master serial clock (SCL) synchronizes the data being
transmitted and received through the MOSI SCL period.
Therefore, a byte is transmitted/received after eight SCL
periods. The SCL pin is configured as an output in master mode
and as an input in slave mode.
In master mode, polarity and phase of the clock are controlled
by the SPICON register, and the bit rate is defined in the
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P0.0/SS is the slave chip select pin. In slave mode, this pin
is an input and must be driven low by the master. In
master mode, this pin is an output and goes low at the
beginning of a transfer and high at the end of a transfer.
P0.1/SCLK/SCL is the SCL pin.
P0.2/MISO is the master in, slave out (MISO) pin.
P0.3/MOSI/SDA is the master out, slave in (MOSI) pin.
f SERIAL CLOCK =
SPIDIV register as follows:
f UCLK
2 × ( 1 + SPIDIV )
The maximum speed of the SPI clock is independent on the
clock divider bits.
To configure P0.0 to P0.3 for SPI mode, Bit 0 to Bit 3 of the
GP0CON0 register must be set to 1. Bit 1 of the GP0CON1
must be set to 1. Note that to write to GP0CON1, the GP0KEY1
register must be set to 0x7 immediately before writing to
GP0CON1. Also, the GP0KEY2 register must be set to 0x13
immediately after writing to GP0CON1. The following code
example shows this in detail:
GP0CON0 = BIT0 + BIT4 + BIT8 + BIT12;
GP0KEY1 = 0x7;
//Select SPI/I 2 C alternative function for P0[0...3]
//Write to GP0KEY1
GP0CON1 &=~ BIT1;
GP0KEY2 = 0x13;
//Select SPI functionality for P0.0 to
//Write to GP0KEY2
Rev. 0 | Page 91 of 100
P0.3
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相关代理商/技术参数 |
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| EVAL-ADUC7060QSPZU1 | 制造商:Analog Devices 功能描述: |
| EVALADUC7060QSPZU2 | 制造商:Analog Devices 功能描述:QUICK START DEVELOPMENT SYSTEM - Boxed Product (Development Kits) |
| EVAL-ADUC7061MKZ | 功能描述:开发板和工具包 - ARM Quick Start Development System RoHS:否 制造商:Arduino 产品:Development Boards 工具用于评估:ATSAM3X8EA-AU 核心:ARM Cortex M3 接口类型:DAC, ICSP, JTAG, UART, USB 工作电源电压:3.3 V |
| EVAL-ADUC7061MKZ | 制造商:Analog Devices 功能描述:ADUC7061MKZ EvaluationBoard |
| EVAL-ADUC7061MKZU2 | 制造商:Analog Devices 功能描述:PN may be NE CE 制造商:Analog Devices 功能描述:EVALUATION CONTROL BOARD - Boxed Product (Development Kits) |
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