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| 型號(hào)： | TMS320F240PQL |
| 英文描述： | 16-Bit Microcontroller |
| 中文描述： | 16位微控制器 |
| 文件頁數(shù)： | 45/105頁 |
| 文件大?。?/td> | 1481K |
| 代理商： | TMS320F240PQL |
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TMS320C240, TMS320F240
DSP CONTROLLERS
SPRS042D – OCTOBER 1996 – REVISED NOVEMBER 1998
45
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251–1443
serial peripheral interface (SPI) module
The TMS320x240 devices include the four-pin serial peripheral interface (SPI) module. The SPI is a high-speed
synchronous serial-I/O port that allows a serial bit stream of programmed length (one to eight bits) to be shifted
into and out of the device at a programmable bit-transfer rate. Normally, the SPI is used for communications
between the DSP controller and external peripherals or another processor. Typical applications include external
I/O or peripheral expansion through devices such as shift registers, display drivers, and ADCs. Multidevice
communications are supported by the master/slave operation of the SPI.
The SPI module features include the following:
Four external pins:
–
SPISOMI: SPI slave-output/master-input pin, or general-purpose bidirectional I/O pin
–
SPISIMO: SPI slave-input/master-output pin, or general-purpose bidirectional I/O pin
–
SPISTE: SPI slave-transmit-enable pin, or general-purpose bidirectional I/O pin
–
SPICLK: SPI serial-clock pin, or general-purpose bidirectional I/O pin
Two operational modes: master and slave
Baud rate: 125 different programmable rates / 2.5 Mbps at 10-MHz SYSCLK
Data word format: one to eight data bits
Four clocking schemes controlled by clock polarity and clock-phase bits include:
–
Falling edge without phase delay: SPICLK active high. SPI transmits data on the falling edge of the
SPICLK signal and receives data on the rising edge of the SPICLK signal.
–
Falling edge with phase delay: SPICLK active high. SPI transmits data one half-cycle ahead of the
falling edge of the SPICLK signal and receives data on the falling edge of the SPICLK signal.
–
Rising edge without phase delay: SPICLK inactive low. SPI transmits data on the rising edge of the
SPICLK signal and receives data on the falling edge of the SPICLK signal.
–
Rising edge with phase delay: SPICLK inactive low. SPI transmits data one half-cycle ahead of the
falling edge of the SPICLK signal and receives data on the rising edge of the SPICLK signal.
Simultaneous receive and transmit operations (transmit function can be disabled in software)
Transmitter and receiver operations are accomplished through either interrupt-driven or polled algorithms.
Ten SPI module control registers: Located in control register frame beginning at address 7040h.
NOTE: All registers in this module are 8-bit registers that are connected to the 16-bit peripheral bus. When a register is accessed, the register
data is in the lower byte (7–0), and the upper byte (15–8) is read as zeros. Writing to the upper byte has no effect.
Figure 13 is a block diagram of the SPI in slave mode.
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| TMS320F240PQS | 功能描述:數(shù)字信號(hào)處理器和控制器 - DSP, DSC 32B Dig Sig Cntrllr w/ Flash RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時(shí)鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時(shí)器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT |
| TMS320F241FN | 功能描述:數(shù)字信號(hào)處理器和控制器 - DSP, DSC 16B 5V fixed point DSP w/ Flash RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時(shí)鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時(shí)器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT |
| TMS320F241FN | 制造商:Texas Instruments 功能描述:IC C2000 DSP SMD 320F241 PLCC68 |
| TMS320F241FNA | 功能描述:數(shù)字信號(hào)處理器和控制器 - DSP, DSC 16B 5V fixed point DSP w/ Flash RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時(shí)鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時(shí)器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT |
| TMS320F241FNS | 功能描述:數(shù)字信號(hào)處理器和控制器 - DSP, DSC 16B 5V fixed point DSP w/ Flash RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時(shí)鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時(shí)器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT |
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