參數(shù)資料
型號: ADSP-2188NBSTZ-320
廠商: Analog Devices Inc
文件頁數(shù): 22/48頁
文件大小: 0K
描述: IC DSP CONTROLLER 16BIT 100LQFP
標(biāo)準(zhǔn)包裝: 1
系列: ADSP-21xx
類型: 定點(diǎn)
接口: 主機(jī)接口,串行端口
時鐘速率: 80MHz
非易失內(nèi)存: 外部
芯片上RAM: 256kB
電壓 - 輸入/輸出: 1.8V,2.5V,3.3V
電壓 - 核心: 1.90V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 100-LQFP
供應(yīng)商設(shè)備封裝: 100-LQFP(14x14)
包裝: 托盤
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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