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TMS320VC549 Datasheet(PDF) 88 Page - Texas Instruments

Part # TMS320VC549
Description  FIXED-POINT DIGITAL SIGNAL PROCESSORS
PDF  111 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

TMS320VC549 Datasheet(HTML) 88 Page - Texas Instruments

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TMS320C54x, TMS320LC54x, TMS320VC54x
FIXED-POINT DIGITAL SIGNAL PROCESSORS
SPRS039C – FEBRUARY 1996 – REVISED DECEMBER 1999
88
POST OFFICE BOX 1443
• HOUSTON, TEXAS 77251–1443
instruction acquisition (IAQ), interrupt acknowledge (IACK), external flag (XF), and TOUT timing
switching characteristics over recommended operating conditions for IAQ and IACK
[H = 0.5 tc(CO)] (see Figure 29)
PARAMETER
’C54x-40
’LC54x-40
’LC54x-50
’54x-66
UNIT
MIN
MAX
td(CLKL-IAQL)
Delay time, IAQ low from CLKOUT low
0
5
ns
td(CLKL-IAQH)
Delay time, IAQ high from CLKOUT low
– 2
3
ns
td(A)IAQ
Delay time, address valid before IAQ low
4
ns
td(CLKL-IACKL)
Delay time, IACK low from CLKOUT low
– 2
3
ns
td(CLKL-IACKH)
Delay time , IACK high from CLKOUT low
– 2
3
ns
td(A)IACK
Delay time, address valid before IACK low
3
ns
th(A)IAQ
Hold time, address valid after IAQ high
0
ns
th(A)IACK
Hold time, address valid after IACK high
0
ns
tw(IAQL)
Pulse duration, IAQ low
2H – 10
ns
tw(IACKL)
Pulse duration, IACK low
2H – 10
ns
MSTRB
IACK
IAQ
A[15:0]
CLKOUT
td(A)IACK
td(A)IAQ
tw(IACKL)
th(A)IACK
td(CLKL-IACKL)
tw(IAQL)
th(A)IAQ
td(CLKL-IAQL)
td(CLKL-IACKH)
td(CLKL-IAQH)
Figure 29. Instruction Acquisition (IAQ) and Interrupt Acknowledge (IACK) Timing



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