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TMS320C5515
SPRS645F – AUGUST 2010 – REVISED OCTOBER 2013
CLKOUT
1
WAKEUP
INTx
2
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A.
B.
C.
D.
5.8.3
INT[1:0] can only be used as a wake-up event for IDLE3 and IDLE2 modes.
RTC interrupt (internal signal) can be used as wake-up event for IDLE3 and IDLE2 modes.
Any unmasked interrupt can be used to exit the IDLE2 mode.
CLKOUT reflects either the CPU clock, SAR, USB PHY, or PLL clock dependent on the setting of the CLOCKOUT
Clock Source Register. For this diagram, CLKOUT refers to the CPU clock.
Figure 5-14. Wake-Up From IDLE Timings
XF Electrical Data/Timing
Table 5-10. Switching Characteristics Over Recommended Operating Conditions For XF (1)
(2)
(see Figure 5-15 )
CV DD = 1.05 V
NO.
PARAMETER
CV DD = 1.3 V
MIN
MAX
UNIT
1
t d(XF)
Delay time, CLKOUT high to XF high
0
10.2
ns
(1)
(2)
P = 1/SYSCLK clock frequency in ns. For example, when the CPU core is clocked at 100 MHz, use P = 10 ns.
C = 1/RTCCLK= 30.5 μ s. RTCCLK is the clock output of the 32.768-kHz RTC oscillator.
(A)
CLKOUT
1
XF
A.
CLKOUT reflects either the CPU clock, SAR, USB PHY, or PLL clock dependent on the setting of the CLOCKOUT
Clock Source Register. For this diagram, CLKOUT refers to the CPU clock.
Figure 5-15. XF Timings
88
Peripheral Information and Electrical Specifications
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