ADSP-2185LKST-210 Analog Devices Inc, ADSP-2185LKST-210 Datasheet - Page 24

• Manufacturer Part Number: ADSP-2185LKST-210
• Description: IC DSP CONTROLLER 16BIT 100LQFP
• Manufacturer: Analog Devices Inc
• Series: ADSP-21xxr
• Type: Fixed Pointr

Specifications of ADSP-2185LKST-210

• Rohs Status: RoHS non-compliant
• Interface: Host Interface, Serial Port
• Clock Rate: 52MHz
• Non-volatile Memory: External
• On-chip Ram: 80kB
• Voltage - I/o: 3.30V
• Voltage - Core: 3.30V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 100-LQFP
• Device Core Size: 16b
• Format: Fixed Point
• Clock Freq (max): 52.5MHz
• Mips: 52.5
• Device Input Clock Speed: 52.5MHz
• Ram Size: 80KB
• Program Memory Size: 48KB
• Operating Supply Voltage (typ): 3.3V
• Operating Supply Voltage (min): 3V
• Operating Supply Voltage (max): 3.6V
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 100
• Package Type: LQFP
• Lead Free Status / Rohs Status: Not Compliant

ADSP-2184L/ADSP-2185L/ADSP-2186L/ADSP-2187L
Interrupts and Flags
Table 15. Interrupts and Flags
1
2
3
4
5
Parameter
Timing Requirements:
t
t
Switching Characteristics:
t
t
If IRQx and FI inputs meet t
Edge-sensitive interrupts require pulse widths 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
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.)
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 the
OUTPUTS
CLKOUT
FLAG
IRQx
PFx
FI
Rev. C | Page 24 of 48 | January 2008
5
5
Figure 17. Interrupts and Flags
1, 2, 3, 4
1, 2, 3, 4
t
FOH
t
FOD
t
IFH
t
IFS
Min
0.25t
0.25t
0.5t
CK
CK
CK
– 5
+ 15
Max
0.5t
CK
+ 4
Unit
ns
ns
ns
ns