参数资料
型号: ADSP-2185NKSTZ-320
厂商: Analog Devices Inc
文件页数: 22/48页
文件大小: 0K
描述: IC DSP CONTROLLER 16BIT 100LQFP
标准包装: 1
系列: ADSP-21xx
类型: 定点
接口: 主机接口,串行端口
时钟速率: 80MHz
非易失内存: 外部
芯片上RAM: 80kB
电压 - 输入/输出: 1.8V,2.5V,3.3V
电压 - 核心: 1.80V
工作温度: 0°C ~ 70°C
安装类型: 表面贴装
封装/外壳: 100-LQFP
供应商设备封装: 100-LQFP(14x14)
包装: 托盘
ADSP-218xN
Rev. A
|
Page 29 of 48
|
August 2006
Interrupts and Flags
Table 16. Interrupts and Flags
Parameter
Min
Max
Unit
Timing Requirements:
tIFS
IRQx, FI, or PFx Setup before CLKOUT Low1, 2, 3, 4
0.25tCK + 10
ns
tIFH
IRQx, FI, or PFx Hold after CLKOUT High1, 2, 3, 4
0.25tCK
ns
Switching Characteristics:
tFOH
Flag Output Hold after CLKOUT Low
5
0.5tCK – 5
ns
tFOD
Flag Output Delay from CLKOUT Low
0.5tCK + 4
ns
1 If IRQx and FI inputs meet tIFS and tIFH setup/hold requirements, they will be recognized during the current clock cycle; otherwise the signals will be recognized on the
following cycle. (Refer to “Interrupt Controller Operation” in the Program Control chapter of the ADSP-218x DSP Hardware Reference for further information on
interrupt servicing.)
2 Edge-sensitive interrupts require pulse widths greater than 10 ns; level-sensitive interrupts must be held low until serviced.
3 IRQx = IRQ0, IRQ1, IRQ2, IRQL0, IRQL1, IRQLE.
4 PFx = PF0, PF1, PF2, PF3, PF4, PF5, PF6, PF7.
5 Flag Outputs = PFx, FL0, FL1, FL2, FO.
Figure 27. Interrupts and Flags
tFOD
tFOH
tIFH
tIFS
CLKOUT
FLAG
OUTPUTS
IRQx
FI
PFx
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