参数资料
型号: TMX320LF2403AVFS
厂商: Texas Instruments, Inc.
元件分类: 数字信号处理
英文描述: DSP CONTROLLERS
中文描述: DSP控制器
文件页数: 119/134页
文件大小: 1759K
代理商: TMX320LF2403AVFS
TMS320LF2407A, TMS320LF2406A, TMS320LF2403A, TMS320LF2402A
TMS320LC2406A, TMS320LC2404A, TMS320LC2403A, TMS320LC2402A
DSP CONTROLLERS
SPRS145K JULY 2000 REVISED AUGUST 2005
85
POST OFFICE BOX 1443
HOUSTON, TEXAS 772511443
LPM2 wakeup timing
switching characteristics over recommended operating conditions (see Figure 33)
PARAMETER
MIN
MAX
UNIT
t ()
Delay time, PDPINTA low to PWM
if bit 6 of SCSR2 = 0
(6 + 1)tc(CO) + 12
ns
td(PDP-PWM)HZ
Delay time, PDPINTA low to PWM
high-impedance state
if bit 6 of SCSR2 = 1
(12+ 1)tc(CO) + 12
ns
td(INT)
Delay time, INT low/high to interrupt-vector
fetch
10tc(CO) + tw(PDPWAKE)
ns
Includes i/p qualifier cycles plus synchronization plus propagation delay
timing requirements (see Figure 33)
MIN
MAX
UNIT
t
Pulse duration PDPINTA input low
if bit 6 of SCSR2 = 0
6tc(CO)
ns
tw(PDPWAKE)
Pulse duration, PDPINTA input low
if bit 6 of SCSR2 = 1
12tc(CO)
ns
tp
PLL lock-up time
4096tc(CI)
cycles
This is different from 240x devices.
PWM
PDPINTx
CLKOUT
tw(PDPWAKE)
td(PDP-PWM)HZ
CPU Status
Interrupt Vector§ or
Next Instruction
td(INT)
XTAL1
Oscillator Disabled
CLKIN
tp
tOSC
CPU IDLE State (LPM2)
tOSC is the oscillator start-up time.
CLKOUT frequency after LPM2 wakeup will be the same as that upon entering LPM2 (x4 shown as an example).
§ PDPINTx interrupt vector, if PDPINTx interrupt is enabled.
If PDPINTx interrupt is disabled.
Figure 33. LPM2 Wakeup Using PDPINTx
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