参数资料
型号: DSP56F803BU80
厂商: Freescale Semiconductor
文件页数: 3/52页
文件大小: 0K
描述: IC DSP 80MHZ 64KB FLASH 100LQFP
标准包装: 90
系列: 56F8xx
核心处理器: 56800
芯体尺寸: 16-位
速度: 80MHz
连通性: CAN,EBI/EMI,SCI,SPI
外围设备: POR,PWM,WDT
输入/输出数: 16
程序存储器容量: 71KB(35.5K x 16)
程序存储器类型: 闪存
RAM 容量: 2.5K 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: 外部
工作温度: -40°C ~ 85°C
封装/外壳: 100-LQFP
包装: 托盘
Clock and Phase Locked Loop Signals
56F803 Technical Data, Rev. 16
Freescale Semiconductor
11
2.3 Clock and Phase Locked Loop Signals
2.4 Address, Data, and Bus Control Signals
Table 2-5 PLL and Clock
No. of
Pins
Signal
Name
Signal
Type
State During
Reset
Signal Description
1
EXTAL
Input
External Crystal Oscillator Input—This input should be connected to
an 8MHz external crystal or ceramic resonator. For more information,
please refer to Section 3.5.
1
XTAL
Input/
Output
Chip-driven
Crystal Oscillator Output—This output should be connected to an
8MHz external crystal or ceramic resonator. For more information,
please refer to Section 3.5.
This pin can also be connected to an external clock source. For more
information, please refer to Section 3.5.3.
1
CLKO
Output
Chip-driven
Clock Output—This pin outputs a buffered clock signal. By
programming the CLKOSEL[4:0] bits in the CLKO Select Register
(CLKOSR), the user can select between outputting a version of the
signal applied to XTAL and a version of the device’s master clock at the
output of the PLL. The clock frequency on this pin can also be disabled
by programming the CLKOSEL[4:0] bits in CLKOSR.
Table 2-6 Address Bus Signals
No. of
Pins
Signal
Name
Signal
Type
State During
Reset
Signal Description
6
A0–A5
Output
Tri-stated
Address Bus—A0–A5 specify the address for external Program or Data
memory accesses.
2
A6–A7
GPIOE2
GPIOE3
Output
Input/O
utput
Tri-stated
Input
Address Bus—A6–A7 specify the address for external Program or Data
memory accesses.
Port E GPIO—These two pins are General Purpose I/O (GPIO) pins that
can be individually programmed as input or output pins.
After reset, the default state is Address Bus.
8
A8–A15
GPIOA0
GPIOA7
Output
Input/O
utput
Tri-stated
Input
Address Bus—A8–A15 specify the address for external Program or
Data memory accesses.
Port A GPIO—These eight pins are General Purpose I/O (GPIO) pins
that can be individually programmed as input or output pins.
After reset, the default state is Address Bus.
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