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參數資料
型號： MC56F8346
廠商： Motorola, Inc.
英文描述： 56F8346 16-bit Hybrid Controller
中文描述： 56F8346 16位混合控制器
文件頁數： 113/160頁
文件大小： 1415K
代理商： MC56F8346
Stop and Wait Mode Disable Function
56F8346 Technical Data
Preliminary
113
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 first extended for 2
21
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 they are always released internally on a rising edge of
the system clock.
D-FLOP
D
Q
C
D-FLOP
D
Q
C
R
56800E
STOP_DIS
Permanent
Disable
Reprogrammable Disable
Clock
Select
RESET
Note: Wait disable circuit is similar
F
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
.
相關PDF資料
PDF描述
MC56F8346MFV60 56F8346 16-bit Hybrid Controller
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相關代理商/技術參數
參數描述
MC56F8346EVM 制造商:Freescale Semiconductor 功能描述:Tools Development kit Kit Contents:Inst
MC56F8346MFV60 功能描述:數字信號處理器和控制器 - DSP, DSC 60MHz 60MIPS RoHS:否 制造商:Microchip Technology 核心:dsPIC 數據總線寬度:16 bit 程序存儲器大小:16 KB 數據 RAM 大小:2 KB 最大時鐘頻率:40 MHz 可編程輸入/輸出端數量:35 定時器數量:3 設備每秒兆指令數: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 安裝風格:SMD/SMT
MC56F8346MFVE 功能描述:數字信號處理器和控制器 - DSP, DSC 16 BIT HYBRID CONTROLLER RoHS:否 制造商:Microchip Technology 核心:dsPIC 數據總線寬度:16 bit 程序存儲器大小:16 KB 數據 RAM 大小:2 KB 最大時鐘頻率:40 MHz 可編程輸入/輸出端數量:35 定時器數量:3 設備每秒兆指令數: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 安裝風格:SMD/SMT
MC56F8346VFV60 功能描述:數字信號處理器和控制器 - DSP, DSC 60MHz 60MIPS RoHS:否 制造商:Microchip Technology 核心:dsPIC 數據總線寬度:16 bit 程序存儲器大小:16 KB 數據 RAM 大小:2 KB 最大時鐘頻率:40 MHz 可編程輸入/輸出端數量:35 定時器數量:3 設備每秒兆指令數: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 安裝風格:SMD/SMT
MC56F8346VFVE 功能描述:數字信號處理器和控制器 - DSP, DSC 16 BIT HYBRID CNTRLR RoHS:否 制造商:Microchip Technology 核心:dsPIC 數據總線寬度:16 bit 程序存儲器大小:16 KB 數據 RAM 大小:2 KB 最大時鐘頻率:40 MHz 可編程輸入/輸出端數量:35 定時器數量:3 設備每秒兆指令數: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 安裝風格:SMD/SMT
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