参数资料
型号: MC56F8346VFVE
厂商: Freescale Semiconductor
文件页数: 15/178页
文件大小: 0K
描述: IC DSP 16BIT 60MHZ 144-LQFP
标准包装: 60
系列: 56F8xxx
核心处理器: 56800E
芯体尺寸: 16-位
速度: 60MHz
连通性: CAN,EBI/EMI,SCI,SPI
外围设备: POR,PWM,温度传感器,WDT
输入/输出数: 62
程序存储器容量: 136KB(68K x 16)
程序存储器类型: 闪存
RAM 容量: 6K x 16
电压 - 电源 (Vcc/Vdd): 2.25 V ~ 3.6 V
数据转换器: A/D 16x12b
振荡器型: 外部
工作温度: -40°C ~ 105°C
封装/外壳: 144-LQFP
包装: 托盘
配用: MC56F8367EVME-ND - EVAL BOARD FOR MC56F83X
Operating Modes
56F8346 Technical Data, Rev. 15
Freescale Semiconductor
111
Preliminary
6.3 Operating Modes
Since the SIM is responsible for distributing clocks and resets across the chip, it must understand the
various chip operating modes and take appropriate action. These are:
Reset Mode, which has two submodes:
— POR and RESET operation
The 56800E core and all peripherals are reset. This occurs when the internal POR is asserted or the
RESET pin is asserted.
— COP reset and software reset operation
The 56800E core and all peripherals are reset. The MA bit within the OMR is not changed. This allows
the software to determine the boot mode (internal or external boot) to be used on the next reset.
Run Mode
This is the primary mode of operation for this device. In this mode, the 56800E controls chip operation.
Debug Mode
The 56800E is controlled via JTAG/EOnCE when in debug mode. All peripherals, except the COP and
PWMs, continue to run. COP is disabled and PWM outputs are optionally switched off to disable any motor
from being driven; see the PWM chapter in the 56F8300 Peripheral User Manual for details.
Wait Mode
In Wait mode, the core clock and memory clocks are disabled. Optionally, the COP can be stopped.
Similarly, it is an option to switch off PWM outputs to disable any motor from being driven. All other
peripherals continue to run.
Stop Mode
When in Stop mode, the 56800E core, memory, and most peripheral clocks are shut down. Optionally, the
COP and CAN can be stopped. 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. The
CAN (along with any non-gated interrupt) is capable of waking the chip up from Stop mode, but is not fully
functional in Stop mode.
6.4 Operating Mode Register
Figure 6-1 OMR
The reset state for MB and MA will depend on the Flash secured state. See Part 4.2 and Part 7 for detailed
information on how the Operating Mode Register (OMR) MA and MB bits operate in this device. For all
other bits, see the DSP56800E Reference Manual.
Note:
The OMR is not a Memory Map register; it is directly accessible in code through the acronym OMR.
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
NL
CM
XP
SD
R
SA
EX
0
MB
MA
Type
R/W
RESET
0
0000
0
X
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