参数资料
型号: DSP56F802TA80E
厂商: Freescale Semiconductor
文件页数: 3/40页
文件大小: 0K
描述: IC DSP 60MHZ 16KB FLASH 32-LQFP
标准包装: 250
系列: 56F8xx
核心处理器: 56800
芯体尺寸: 16-位
速度: 80MHz
连通性: SCI
外围设备: POR,PWM,WDT
输入/输出数: 8
程序存储器容量: 20KB(10K 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 5x12b
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 32-LQFP
包装: 托盘
Interrupt and Program Control Signals
56F802 Technical Data, Rev. 9
Freescale Semiconductor
11
2.3 Interrupt and Program Control Signals
2.4 Pulse Width Modulator (PWM) Signals
2.5 Serial Communications Interface (SCI) Signals
Table 2-5 Program Control Signals
No. of
Pins
Signal
Name
Signal
Type
State During
Reset
Signal Description
1
RESET
Input
(Schmitt)
Input
Reset—This input is a direct hardware reset on the processor. When
RESET is asserted low, the controller is initialized and placed in the
Reset state. A Schmitt trigger input is used for noise immunity. When the
RESET pin is deasserted, the initial chip operating mode is latched from
the EXTBOOT pin. The internal reset signal will be deasserted
synchronous with the internal clocks, after a fixed number of internal
clocks.
To ensure complete hardware reset, RESET and TRST should be
asserted together. The only exception occurs in a debugging
environment when a hardware device reset is required and it is
necessary not to reset the OnCE/JTAG module. In this case, assert
RESET, but do not assert TRST.
Table 2-6 Pulse Width Modulator (PWMA) Signals
No. of
Pins
Signal
Name
Signal
Type
State During
Reset
Signal Description
6
PWMA0-5
Output
Tri-stated
PWMA0-5— These are six PWMA output pins.
1
FAULTA0
Input
(Schmitt)
Input
FAULTA0 —This fault input is used for disabling selected PWMA
outputs in cases where fault conditions originate off-chip.
Table 2-7 Serial Communications Interface (SCI0) Signals
No. of
Pins
Signal
Name
Signal
Type
State During
Reset
Signal Description
1
TXD0
GPIOB0
Output
Input/Ou
tput
Input
Transmit Data (TXD0)—SCI0 transmit data output
Port B GPIO—This pin is a General Purpose I/O (GPIO) pin that can
be individually programmed as an input or output pin.
After reset, the default state is SCI output.
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