参数资料
型号: DSPB56374AEC
厂商: Freescale Semiconductor
文件页数: 17/64页
文件大小: 0K
描述: IC DSP 24BIT 150MHZ 52-LQFP
产品变化通告: Product Discontinuation 24/Feb/2012
标准包装: 160
系列: DSP56K/Symphony
类型: 音频处理器
接口: 主机接口,I²C,SAI,SPI
时钟速率: 150MHz
非易失内存: ROM(84 kB)
芯片上RAM: 54kB
电压 - 输入/输出: 3.30V
电压 - 核心: 1.25V
工作温度: -40°C ~ 110°C
安装类型: 表面贴装
封装/外壳: 52-LQFP
供应商设备封装: 52-LQFP(10x10)
包装: 托盘
DSP56374 Data Sheet, Rev. 4.2
Signal Groupings
Freescale Semiconductor
24
4.10 Timer
Table 13. Timer Signal
Signal
Name
Type
State
during
Reset
Signal Description
TIO0
Input or
Output
GPIO Input Timer 0 Schmitt-Trigger Input/Output—When timer 0 functions as an
external event counter or in measurement mode, TIO0 is used as input.
When timer 0 functions in watchdog, timer, or pulse modulation mode,
TIO0 is used as output.
The default mode after reset is GPIO input. This can be changed to
output or configured as a timer input/output through the timer 0
control/status register (TCSR0). If TIO0 is not being used, it is
recommended to either define it as GPIO output immediately at the
beginning of operation or leave it defined as GPIO input.
Internal Pull down resistor.
This input is 5 V tolerant
TIO1
Input or
Output
Watchdog
Timer
Output
Timer 1 Schmitt-Trigger Input/Output—When timer 1 functions as an
external event counter or in measurement mode, TIO1 is used as input.
When timer 1 functions in watchdog, timer, or pulse modulation mode,
TIO1 is used as output.
The default mode after reset is GPIO input. This can be changed to
output or configured as a timer input/output through the timer
1control/status register (TCSR1). If TIO1 is not being used, it is
recommended to either define it as GPIO output immediately at the
beginning of operation or leave it defined as GPIO input.
WDT
Output
WDT—When this pin is configured as a hardware watchdog timer pin,
this signal is asserted low when the hardware watchdog timer counts
down to zero.
Internal Pull down resistor.
This input is 5 V tolerant
TIO2
Input or
Output
PLOCK
Output
Timer 2 Schmitt-Trigger Input/Output—When timer 2 functions as an
external event counter or in measurement mode, TIO2 is used as input.
When timer 2 functions in watchdog, timer, or pulse modulation mode,
TIO2 is used as output.
The default mode after reset is GPIO input. This can be changed to
output or configured as a timer input/output through the timer
control/status register (TCSR2). If TIO2 is not being used, it is
recommended to either define it as GPIO output immediately at the
beginning of operation or leave it defined as GPIO input .
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