adsp-2188m Analog Devices, Inc., adsp-2188m Datasheet - Page 25

• Manufacturer Part Number: adsp-2188m
• Description: Dsp Microcomputer
• Manufacturer: Analog Devices, Inc.

Parameter
Interrupts and Flags
Timing Requirements:
t
t
Switching Characteristics:
t
t
NOTES
1
2
3
4
5
If IRQx and FI inputs meet t
Edge-sensitive interrupts require pulsewidths greater than 10 ns; level-sensitive interrupts must be held low until serviced.
IRQx = IRQ0, IRQ1, IRQ2, IRQL0, IRQL1, IRQLE.
PFx = PF0, PF1, PF2, PF3, PF4, PF5, PF6, PF7.
Flag Outputs = PFx, FL0, FL1, FL2, FO.
IFS
IFH
FOH
FOD
the following cycle. (Refer to “Interrupt Controller Operation” in the Program Control chapter of the ADSP-2100 Family User’s Manual for further information on
interrupt servicing.)
IRQx, FI, or PFx Setup before CLKOUT Low
IRQx, FI, or PFx Hold after CLKOUT High
Flag Output Hold after CLKOUT Low
Flag Output Delay from CLKOUT Low
IFS
and t
IFH
setup/hold requirements, they will be recognized during the current clock cycle; otherwise the signals will be recognized on
OUTPUTS
CLKOUT
FLAG
IRQx
PFx
FI
5
5
t
FOH
t
FOD
1, 2, 3, 4
1, 2, 3, 4
t
IFH
t
IFS
Min
0.25t
0.25t
0.5t
CK
CK
CK
– 5
+ 10
ADSP-2188M
Max
0.5t
CK
+ 4
Unit
ns
ns
ns
ns