AD14160/AD14160LBB-4 Просмотр технического описания (PDF) - Analog Devices

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производитель

AD14160/AD14160LBB-4

Quad-SHARC DSP Multiprocessor

Analog Devices 

Parameter

Timer

Switching Characteristic:

tDTEX

CLKIN High to TIMEXP

40 MHz–5 V

Min

Max

15.5

AD14160/AD14160L

40 MHz–3.3 V

Min

Max

Units

15.5

ns

CLKIN

TIMEXP

tDTEX

tDTEX

Figure 12. Timer

OBSOLETE Parameter

Flags

Timing Requirements:

tSFI

tHFI

tDWRFI

tHFIWR

FLAG3-0IN Setup Before CLKIN High1

FLAG3-0IN Hold After CLKIN High1

FLAG3-0IN Delay After RD/WR Low1

FLAG3-0IN Hold After RD/WR Deasserted1

Switching Characteristics:

tDFO

tHFO

tDFOE

tDFOD

FLAG3-0OUT Delay After CLKIN High

FLAG3-0OUT Hold After CLKIN High

CLKIN High to FLAG3-0OUT Enable

CLKIN High to FLAG3-0OUT Disable

40 MHz–5 V

Min

Max

8 + 5DT/16

0 – 5DT/16

0.5

5 + 7DT/16

16.5

4

3

14.5

40 MHz–3.3 V

Min

Max

Units

8 + 5DT/16

ns

0 – 5DT/16

ns

5 + 7DT/16 ns

0.5

ns

16.5

ns

4

ns

3

ns

14.5

ns

NOTE

1Flag inputs meeting these setup and hold times will affect conditional instructions in the following instruction cycle.

CLKIN

FLAG3–0OUT

tDFOE

tDFO

tDFO

tHFO

FLAG OUTPUT

tDFOD

CLKIN

FLAG3–0I N

RD, WR

tHFI

tSFI

tDWRFI

tHFIWR

FLAG INPUT

Figure 13. Flags

REV. A

–17–

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