参数资料
型号: MC56F8014MFAE
厂商: Freescale Semiconductor
文件页数: 114/124页
文件大小: 0K
描述: IC DIGITAL SIGNAL CTLR 32-LQFP
标准包装: 1,250
系列: 56F8xxx
核心处理器: 56800E
芯体尺寸: 16-位
速度: 32MHz
连通性: I²C,SCI,SPI
外围设备: POR,PWM,WDT
输入/输出数: 26
程序存储器容量: 16KB(8K x 16)
程序存储器类型: 闪存
RAM 容量: 2K x 16
电压 - 电源 (Vcc/Vdd): 3 V ~ 3.6 V
数据转换器: A/D 8x12b
振荡器型: 内部
工作温度: -40°C ~ 125°C
封装/外壳: 32-LQFP
包装: 托盘
Architecture Block Diagram
56F8014 Technical Data, Rev. 11
Freescale Semiconductor
9
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1.4 Architecture Block Diagram
The 56F8014’s architecture is shown in Figure 1-1, Figure 1-2, and Figure 1-3. Figure 1-1 illustrates
how the 56800E system buses communicate with internal memories and the IPBus Bridge, as well as
showing the internal connections between each unit of the 56800E core. Figure 1-2 shows the peripherals
and control blocks connected to the IPBus Bridge. Figure 1-3 details how the device’s I/O pins are muxed.
The figures do not show the on-board regulator and power and ground signals. They also do not show the
multiplexing between peripherals or the dedicated GPIOs. Please see Part 2 Signal/Connection
Descriptions to see which signals are multiplexed with those of other peripherals.
1.5 Synchronize ADC with PWM
ADC conversion can be synchronized with the PWM module via Quad Timer channel 2 and 3 if needed.
Internally, the PWM synch signal — which is generated at every PWM reload —can be connected to the
timer channel 3 input, and the timer channel 2 and channel 3 outputs are connected to the ADC sync inputs.
Timer channel 3 output is connected to SYNC0 and timer channel 2 is connected to SYNC1. The setting
is controlled by the TC3_INP bit in the SIM Control Register; see Section 6.3.1.
SYNC0 is the master ADC sync input, used to trigger both ADCA and ADCB in sequence and parallel
mode. SYNC1 is used to trigger ADCB in parallel independent mode, while SYNC0 is used to trigger
ADCA. See MC56F8000RM, the 56F801X Peripheral Reference Manual, for additional information.
1.6 Multiple Frequency PWM Output
When both PWM channels of a complementary pair in software control mode and software control bits
are set to 1, each complementary PWM signal pair — PWM 0 and 1; PWM 2 and 3; and PWM 4 and 5 —
can select a PWM source from one of the following sources. This will enable each PWM pair and PWM2
to output PWM signals at different frequencies.
External GPIO input:
— GPIOB2 input can be used to drive PWM 0 and 1
— GPIOB3 input can be used to drive PWM 2
— GPIOB4 input can be used to drive PWM 4 and 5
Quad Timer output:
— Timer0 output can be used to drive PWM 0 and 1
— Timer2 output can be used to drive PWM 2
— Timer3 output can be used to drive PWM 4 and 5
ADC conversion result:
— Signal of over/under limit of ADC sample 0 can be used to drive PWM 0 and 1
— Signal of over/under limit of ADC sample 1 can be used to drive PWM 2
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