- 您现在的位置：买卖IC网 > PDF目录80398 > MC56F8122VFAE (FREESCALE SEMICONDUCTOR INC) 0-BIT, 80 MHz, OTHER DSP, PQFP48 PDF资料下载
参数资料
| 型号： | MC56F8122VFAE |
| 厂商： | FREESCALE SEMICONDUCTOR INC |
| 元件分类： | 数字信号处理 |
| 英文描述： | 0-BIT, 80 MHz, OTHER DSP, PQFP48 |
| 封装： | ROHS COMPLIANT, LQFP-48 |
| 文件页数： | 131/136页 |
| 文件大小： | 719K |
| 代理商： | MC56F8122VFAE |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页第68页第69页第70页第71页第72页第73页第74页第75页第76页第77页第78页第79页第80页第81页第82页第83页第84页第85页第86页第87页第88页第89页第90页第91页第92页第93页第94页第95页第96页第97页第98页第99页第100页第101页第102页第103页第104页第105页第106页第107页第108页第109页第110页第111页第112页第113页第114页第115页第116页第117页第118页第119页第120页第121页第122页第123页第124页第125页第126页第127页第128页第129页第130页当前第131页第132页第133页第134页第135页第136页
56F8322 Techncial Data, Rev. 16
94
Freescale Semiconductor
Preliminary
6.8 Stop and Wait Mode Disable Function
Figure 6-16 Internal Stop Disable Circuit
The 56800E core contains both STOP and WAIT instructions. Both put the CPU to sleep. For lowest
power consumption in Stop mode, the PLL can be shut down. This must be done explicitly before entering
Stop mode, since there is no automatic mechanism for this. When the PLL is shut down, the 56800E
system clock must be set equal to the prescaler output.
Some applications require the 56800E STOP and WAIT instructions be disabled. To disable those
instructions, write to the SIM control register (SIM_CONTROL) described in Section 6.5.1 . This
procedure can be on either a permanent or temporary basis. Permanently assigned applications last only
until their next reset.
6.9 Resets
The SIM supports four sources of reset. The two asynchronous sources are the external RESET pin and
the Power-On Reset (POR). The two synchronous sources are the software reset, which is generated within
the SIM itself, by writing to the SIM_CONTROL register, and the COP reset.
Reset begins with the assertion of any of the reset sources. Release of reset to various blocks is sequenced
to permit proper operation of the device. A POR reset is declared when reset is removed and any of the
three voltage detectors (1.8V POR, 2.2V core voltage, or 2.7V I/O voltage) indicate a low supply voltage
condition. POR will continue to be asserted until all voltage detectors indicate a stable supply is available
(note that as power is removed POR is not declared until the 1.8V core voltage threshold is reached.) A
POR reset is then extended for 64 clock cycles to permit stabilization of the clock source, followed by a
32 clock window in which SIM clocking is initiated. It is then followed by a 32 clock window in which
peripherals are released to implement Flash security, and, finally, followed by a 32 clock window in which
the core is initialized. After completion of the described reset sequence, application code will begin
execution.
Resets may be asserted asynchronously, but are always released internally on a rising edge of the system
clock.
D-FLOP
DQ
C
D-FLOP
D
Q
C R
56800E
STOP_DIS
Permanent
Disable
Reprogrammable
Disable
Clock
Select
Reset
D
Note: Wait disable circuit is similar
相关PDF资料 |
PDF描述 |
|---|---|
| MC908GR32AMFJR2 | 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PQFP32 |
| MC908GR60AMFAR2 | 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PQFP48 |
| MC908GZ48CFJE | 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PQFP32 |
| MC9328MX21CVMR2 | 32-BIT, 266 MHz, MICROPROCESSOR, PBGA289 |
| MC9S12C64MFAE | 16-BIT, FLASH, 25 MHz, MICROCONTROLLER, PQFP48 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MC56F8123 | 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:16-bit Hybrid Controllers |
| MC56F8123VFB | 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:16-bit Hybrid Controllers |
| MC56F8123VFBE | 功能描述:数字信号处理器和控制器 - DSP, DSC 16 BIT HYBRID CONTROLLER RoHS:否 制造商:Microchip Technology 核心:dsPIC 数据总线宽度:16 bit 程序存储器大小:16 KB 数据 RAM 大小:2 KB 最大时钟频率:40 MHz 可编程输入/输出端数量:35 定时器数量:3 设备每秒兆指令数:50 MIPs 工作电源电压:3.3 V 最大工作温度:+ 85 C 封装 / 箱体:TQFP-44 安装风格:SMD/SMT |
| MC56F8135 | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:16-bit Digital Signal Controller |
| MC56F8135E | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:16-bit Digital Signal Controller |
发布紧急采购，3分钟左右您将得到回复。