參數(shù)資料
型號: TMS320C240PQQ
英文描述: 16-Bit Microcontroller
中文描述: 16位微控制器
文件頁數(shù): 69/105頁
文件大小: 1481K
代理商: TMS320C240PQQ
TMS320C240, TMS320F240
DSP CONTROLLERS
SPRS042D – OCTOBER 1996 – REVISED NOVEMBER 1998
69
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251–1443
low-power mode timings
switching characteristics over recommended operating conditions [H = 0.5 t
c(CO)
]
(see Figure 23, Figure 24, Figure 25, and Figure 26)
PARAMETER
LOW-POWER MODES
Idle 1 and Idle 2
MIN
TYP
MAX
UNIT
td(WAKE A)
td(WAKE-A)
Delay time, CLKOUT switching to
program execution resume (see Note 1)
15 X tc(CO)
15 X tc(CI)
ns
PLL or OSC power down
td(IDLE-COH)
Delay time, Idle instruction executed to
CLKOUT high (see Note 1)
Idle 2, PLL power down, OSC
power down
500
ns
td(WAKE-LOCK)
Delay time, CLKOUT switching to PLL
synchronized (see Note 1)
PLL or OSC power down
100
μ
s
td(WAKE-OSC)
Delay time, wakeup interrupt asserted
to oscillator running
OSC power down
10
ms
td(IDLE-OSC)
Delay time, Idle instruction executed to
oscillator power off
OSC power down
60
μ
s
NOTE 1: Timings assume CLKOUT is set to output CPUCLK. CLKOUT is initialized to CPUCLK by power-on reset.
WAKE INT
CLKOUT/IOPC1
A0–A15
td(WAKE–A)
Figure 23. IDLE1 Entry and Exit Timings
td(WAKE–A)
td(IDLE–COH)
WAKE INT
CLKOUT/IOPC1
A0–A15
Figure 24. IDLE2 Entry and Exit Timings
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