Car Stereo System - Car Radio Digital Signal Processor User Manual

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7.15.3 Timers Electrical Data/Timing
TINPLx
TOUTLx
4
3
2
1
SM320C6455-EP
FIXED-POINT DIGITAL SIGNAL PROCESSOR
SPRS462B – SEPTEMBER 2007 – REVISED JANUARY 2008
Table 7-94. Timing Requirements for Timer Inputs
(1)
(see Figure 7-73 )
-720
-850
A-1000/-1000
NO. UNIT
-1200
MIN MAX
1 t
w(TINPH)
Pulse duration, TINPLx high 12P ns
2 t
w(TINPL)
Pulse duration, TINPLx low 12P ns
(1) P = 1/CPU clock frequency in ns. For example, when running parts at 1000 MHz, use P = 1 ns.
Table 7-95. Switching Characteristics Over Recommended Operating Conditions for Timer Outputs
(1)
(see Figure 7-73 )
-720
-850
A-1000/-1000
NO. PARAMETER UNIT
-1200
MIN MAX
3 t
w(TOUTH)
Pulse duration, TOUTLx high 12P – 3 ns
4 t
w(TOUTL)
Pulse duration, TOUTLx low 12P – 3 ns
(1) P = 1/CPU clock frequency in ns. For example, when running parts at 1000 MHz, use P = 1 ns.
Figure 7-73. Timer Timing
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