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| 型号： | MC56F8014VFAE |
| 厂商： | FREESCALE SEMICONDUCTOR INC |
| 元件分类： | 数字信号处理 |
| 英文描述： | 0-BIT, 8 MHz, OTHER DSP, PQFP32 |
| 封装： | ROHS COMPLIANT, PLASTIC, LQFP-32 |
| 文件页数： | 101/124页 |
| 文件大小： | 1681K |
| 代理商： | MC56F8014VFAE |
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56F8014 Technical Data, Rev. 11
78
Freescale Semiconductor
The power modes provide additional means to disable clock domains, configure the voltage regulator, and
configure clock generation to manage power utilization, as shown in Table 6-3. Run, Wait, and Stop
modes provide means of enabling/disabling the peripheral and/or core clocking as a group. Stop disable
controls are provided for selected peripherals in the control register so that these peripheral clocks can
optionally continue to operate in Stop mode and generate interrupts which will return the part from Stop
to Run mode. Standby mode provides normal operation but at very low speed and power utilization. It is
possible to invoke Stop or Wait mode while in Standby mode for even greater levels of power reduction.
A 200 kHz clock external clock can optionally be used in Standby mode to produce the required Standby
100 kHz system bus rate. Power-down mode, which selects the ROSC clock source but shuts it off, fully
disables the part and minimizes its power utilization but is only recoverable via reset.
When the PLL is not selected and the system bus is operating at around 100 kHz, the large regulator can
Wait
Core and memory
clocks disabled
Peripheral clocks
enabled
Core executes WAIT instruction to enter this
mode.
Typically used for power-conscious applications.
Possible recoveries from Wait mode to Run
mode are:
1. Any interrupt
2. Executing a Debug mode entry command
during the 56800E core JTAG interface
2. Any reset (POR, external, software, COP)
Stop
Master clock generation in the OCCS
remains operational, but the SIM disables
the generation of system and peripheral
clocks.
Core executes STOP instruction to enter this
mode. Possible recoveries from Stop mode to
Run mode are:
1. Interrupt from Timer channels that have been
configured to operate in Stop mode (TCx_SD)
2. Interrupt for SCI configured to operate in Stop
mode (SCI_SD)
3. Low-voltage interrupt
4. Executing a Debug mode entry command
using the 56800E core JTAG interface
5. Any reset (POR, external, software, COP)
Standby
The OCCS generates the 2x System Clock
at a reduced frequency (200 kHz). The PLL
and high speed peripheral clocks are
disabled and the high-speed peripheral
option is not available. System and
peripheral clocks operate at 100 kHz.
The user configures the OCCS and SIM to select
the relaxation oscillator clock source (PRECS),
shut down the PLL (PLLPD), put the relaxation
oscillator in Standby mode (ROSB), and put the
large regulator in Standby (LRSTDBY). The part
is fully operational, but operating at a minimum
frequency and power configuration. Recovery
requires reversing the sequence used to enter
this mode (allowing for PLL lock time).
Power-Down
Master clock generation in the OCCS is
completely shut down. All system and
peripheral clocks are disabled.
The user configures the OCCS and SIM to enter
Standby mode as shown in the previous
description, followed by powering down the
oscillator (ROPD). The only possible recoveries
from this mode are:
1. External reset
2. Power-on reset
Table 6-3 Clock Operation in Power-Down Modes (Continued)
Mode
Core Clocks
Peripheral Clocks
Description
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MC56F8023 | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:16-bit Digital Signal Controllers |
| MC56F8023VLC | 功能描述:数字信号处理器和控制器 - DSP, DSC 16 BIT DSPHC 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 |
| MC56F8025 | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:16-bit Digital Signal Controllers |
| MC56F8025E | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:Digital Signal Controller Product Brief |
| MC56F8025MLD | 功能描述:数字信号处理器和控制器 - DSP, DSC 16 BIT DSPHC 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 |
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