ꢀ ꢁ ꢂ ꢃ ꢄꢅ ꢆ ꢇ ꢈꢉ ꢈꢀꢊ ꢀꢁ ꢂꢃ ꢄ ꢅ ꢆꢇ ꢈ ꢉ ꢋꢀꢊ ꢀꢁ ꢂꢃ ꢄ ꢅ ꢆꢇ ꢈ ꢉ ꢇ ꢀ
ꢌ ꢍ ꢎꢏ ꢐꢑꢒ ꢓꢍ ꢔ ꢀ ꢐꢍ ꢕ ꢍ ꢀꢖꢗ ꢂ ꢍ ꢕꢔ ꢖꢗ ꢒ ꢘꢓ ꢆꢏ ꢂꢂꢓ ꢘꢂ
SPRS226H − NOVEMBER 2003 − REVISED AUGUST 2005
power-down mode logic
Figure 9 shows the power-down mode logic on the C6414T/C6415T/C6416T.
CLKOUT4
CLKOUT6
Internal Clock Tree
Clock
Distribution
and Dividers
PD1
PD2
IFR
Power-
Internal
Peripherals
Clock
PLL
IER
CSR
Down
Logic
PWRD
CPU
PD3
TMS320C6414T/15T/16T
CLKIN
RESET
†
External input clocks, with the exception of CLKIN, are not gated by the power-down mode logic.
†
Figure 9. Power-Down Mode Logic
triggering, wake-up, and effects
The power-down modes and their wake-up methods are programmed by setting the PWRD field (bits 15−10)
of the control status register (CSR). The PWRD field of the CSR is shown in Figure 10 and described in Table 32.
When writing to the CSR, all bits of the PWRD field should be set at the same time. Logic 0 should be used when
writing to the reserved bit (bit 15) of the PWRD field. The CSR is discussed in detail in the TMS320C6000 CPU
and Instruction Set Reference Guide (literature number SPRU189).
70
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