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参数资料
| 型号： | MC33591MOD315 |
| 厂商： | Freescale Semiconductor |
| 文件页数： | 10/28页 |
| 文件大小： | 0K |
| 描述： | BOARD EVALUATION FOR MC33591 RX |
| 标准包装： | 1 |
| 类型： | 接收器 |
| 适用于相关产品： | MC33591 315MHz 射频模块 |
| 所含物品： | 模块和其他硬件 |
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Freescale Semiconductor, Inc.
CONFIGURATION REGISTERS
bits may lead to unexpected configurations. The first bit transmitted on MOSI does not change the content of the
configuration registers. Note that a low level applied on RESETB does not affect the configuration register
content.
When RESETB is set to a high level, if Data Manager is enabled (DME=1), ROMEO2 becomes master and
sends received data on the MOSI line and the recovered clock on SCLK. It is then recommended that the MCU
SPI is set as slave. If the data received does not fit in an entire number of bytes, the data manager will fill the last
byte. If the data received constitute an whole number of bytes, the data manager may generate and send an
extra byte whose content is irrelevant. If DME=0, the SPI is disabled. Raw data is sent on the MOSI line.
When ROMEO2 SPI is changed from master (run mode) to slave (configuration mode) or from slave to
master, it is recommended that the MCU SPI is set as slave before the mode transition.
At power-on, the POR resets the internal registers. This defines the receiver default configuration (see gray
rows on tables 4, 7 & 8). In this configuration, the SPI is disabled and ROMEO2 sends raw data on the MOSI line.
This default configuration enables the circuit to operate as a standalone receiver without any external control.
After POR, RESETB forces a low level. Therefore an external pull-up resistor should be used in order to avoid
entering configuration mode.
Figure 12: Writing into configuration registers
MCU (master)
ROMEO2
0
CR1
CR2
CR3
MOSI line
SCLK line
Figure 13: Reading configuration registers
MCU (master)
ROMEO2
1
Don’t care
Don’t care
Don’t care
MOSI line
SCLK line
1
CR1
MCU (master)
CR2
CR3
ROMEO2
MISO line
CONFIGURATION REGISTERS
Table 4 describes the Configuration Register 1 (CR1).
Table 4: Configuration Register 1
bit 7 bit 6 bit 5 bit 4 bit 3
bit 2
bit 1
bit 0
Bit name
R/W
CF MOD SOE SR1
SR0
DME
HE
Reset value
1
1
0
1
0
1
0
0
10
MC33591 Technical Data
For More Information On This Product,
Go to: www.freescale.com
MOTOROLA
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| MC33591MOD315EV | 功能描述:开发板和工具包 - 无线 MC33493 (TANGO3) RF EVAL RoHS:否 制造商:Arduino 产品:Evaluation Boards 工具用于评估:AT32UC3L 核心:AVR32 频率: 接口类型:USB 工作电源电压:5 V |
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| MC33592FTAE | 功能描述:射频接收器 UHF RECEIVER RoHS:否 制造商:Skyworks Solutions, Inc. 类型:GPS Receiver 封装 / 箱体:QFN-24 工作频率:4.092 MHz 工作电源电压:3.3 V 封装:Reel |
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