- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄382345 > MPC823 (Motorola, Inc.) Communication Processor Module PDF資料下載
參數(shù)資料
| 型號(hào)： | MPC823 |
| 廠商： | Motorola, Inc. |
| 英文描述： | Communication Processor Module |
| 中文描述： | 通信處理器模塊 |
| 文件頁數(shù)： | 56/74頁 |
| 文件大小： | 234K |
| 代理商： | MPC823 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁當(dāng)前第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁
Communication Processor Module
16-434
MPC823 REFERENCE MANUAL
MOTOROLA
S
C
1
P
Transmission continues until no more data is available or the SPISEL pin is negated. If the
pin is negated before all the data is transmitted, it stops, but the TX buffer descriptor stays
open. Further transmission continues once the SPISEL pin is reasserted and SPICLK
begins toggling. After the characters in the TX buffer descriptor are transmitted, the serial
peripheral interface transmits ones if SPISEL is not negated.
16.12.3.1 MULTIMASTER OPERATION.
The serial peripheral interface can operate in a
multimaster environment in which more than one SPI device is connected to the same bus.
In this configuration, the SPIMOSI, SPIMISO, and SPICLK pins of all SPIs are connected
together and the SPISEL input pins are connected separately. In this environment, only one
SPI device can be in master mode and all the others must be in slave mode. When the serial
peripheral interface is configured as a master and its SPISEL signal goes active or low, a
multimaster error will occur because more than one SPI device is a bus master. The serial
peripheral interface sets the MME bit in the SPIE register and a maskable interrupt is issued
to the core. It also disables SPI operation and the output drivers of the SPI pins. The core
must clear the EN bit the SPMODE register before using the serial peripheral interface
again. After the problems are corrected, clear the MME bit and enable the serial peripheral
interface the same way you would after a reset.
Note:
The maximum sustained data rate that the serial peripheral interface supports is
SYSTEMCLK/50. However, the serial peripheral interface can transfer a single
character at much higher rates. For instance, SYSTEMCLK/4 in master mode
and SYSTEMCLK/2 in slave mode. If multiple characters are to be transmitted,
you must insert gaps between them so that it will not exceed the maximum
sustained data rate.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MPC823UM_REV1_16-CPM7 | 10 AMP SUBMINIATURE POWER RELAY |
| MPC9109 | LOW VOLTAGE 1:18 CLOCK DISTRIBUTION CHIP |
| MPC9229 | 400 MHz Low Voltage PECL Clock Synthesizer |
| MPC9230 | 800 MHz Low Voltage PECL Clock Synthesizer |
| MPC9350 | LOW VOLTAGE PLL CLOCK DRIVER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MPC823CVR66B2T | 功能描述:微處理器 - MPU POWER QUICC RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線寬度:32 bit 最大時(shí)鐘頻率:536 MHz 程序存儲(chǔ)器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-324 |
| MPC823CZQ66B2T | 功能描述:微處理器 - MPU PORTABLE SYSTEM MPU RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線寬度:32 bit 最大時(shí)鐘頻率:536 MHz 程序存儲(chǔ)器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-324 |
| MPC823CZQ66B2T | 制造商:Freescale Semiconductor 功能描述:IC 32-BIT MPU 66MHZ 256-PBGA |
| MPC823ELD | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:MPC823e Mobile Computing Microprocessor |
| MPC823ELE | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:MPC823e Mobile Computing Microprocessor |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。