- Texas Instruments Floating Point Digital Signal Processor Specification Sheet

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   
SPRS292 − OCTOBER 2005
100
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443
TIMER TIMING
timing requirements for timer inputs
†
(see Figure 52)
NO.
GDPA−167
ZDPA−167
−200
−250
UNIT
MIN MAX
1 t
w(TINPH)
Pulse duration, TINP high 2P ns
2 t
w(TINPL)
Pulse duration, TINP low 2P ns
†
P = 1/CPU clock frequency in ns. For example, when running parts at 250 MHz, use P = 4 ns.
switching characteristics over recommended operating conditions for timer outputs
†
(see Figure 52)
NO. PARAMETER
GDPA−167
ZDPA−167
−200
−250
UNIT
MIN MAX
3 t
w(TOUTH)
Pulse duration, TOUT high 4P − 3 ns
4 t
w(TOUTL)
Pulse duration, TOUT low 4P − 3 ns
†
P = 1/CPU clock frequency in ns. For example, when running parts at 250 MHz, use P = 4 ns.
TINPx
TOUTx
4
3
2
1
Figure 52. Timer Timing