ADSP-2181BS-115 Analog Devices Inc, ADSP-2181BS-115 Datasheet - Page 15

• Manufacturer Part Number: ADSP-2181BS-115
• Description: IC DSP CONTROLLER 16BIT 128PQFP
• Manufacturer: Analog Devices Inc
• Series: ADSP-21xxr
• Type: Fixed Pointr

Specifications of ADSP-2181BS-115

• Rohs Status: RoHS non-compliant
• Interface: Synchronous Serial Port (SSP)
• Clock Rate: 28.8MHz
• Non-volatile Memory: External
• On-chip Ram: 80kB
• Voltage - I/o: 5.00V
• Voltage - Core: 5.00V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 128-MQFP, 128-PQFP

Parameter
Interrupts and Flag
Timing Requirements:
t
t
Switching Characteristics:
t
t
NOTES
1
2
3
4
5
REV. D
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, IRQE.
PFx = PF0, PF1, PF2, PF3, PF4, PF5, PF6, PF7.
Flag outputs = PFx, FL0, FL1, FL2, Flag_out4.
IFS
IFH
FOH
FOD
the following cycle. (Refer to “Interrupt Controller Operation” in the Program Control chapter of the 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
Figure 9. Interrupts and Flags
5
5
t
FOH
t
FOD
1, 2, 3, 4
–15–
1, 2, 3, 4
t
IFH
Min
0.25t
0.25t
0.5t
t
IFS
CK
CK
CK
– 7
+ 15
Max
0.5t
CK
+ 5
ADSP-2181
Unit
ns
ns
ns
ns