參數(shù)資料
型號： TMS320F28044GGMQ
廠商： Texas Instruments, Inc.
元件分類： 數(shù)字信號處理
英文描述： Digital Signal Processor
中文描述： 數(shù)字信號處理器
文件頁數(shù)： 39/105頁
文件大?。?/td> 768K
代理商： TMS320F28044GGMQ
www.ti.com
A
3.7
Low-Power Modes Block
TMS320F28044
Digital Signal Processor
SPRS357A–AUGUST 2006–REVISED OCTOBER 2006
The low-power modes on the 28044 are similar to the 240x devices.
Table 3-14
summarizes the various
modes.
Table 3-14. Low-Power Modes
MODE
LPMCR0(1:0)
OSCCLK
CLKIN
SYSCLKOUT
EXIT
(1)
XRS, Watchdog interrupt, any enabled
interrupt, XNMI
XRS, Watchdog interrupt, GPIO Port A
signal, debugger
(3)
, XNMI
IDLE
00
On
On
On
(2)
On
STANDBY
01
Off
Off
(watchdog still running)
Off
(oscillator and PLL turned off,
watchdog not functional)
XRS, GPIO Port A signal, XNMI,
debugger
(3)
HALT
1X
Off
Off
(1)
The Exit column lists which signals or under what conditions the low power mode will be exited. A low signal, on any of the signals, will
exit the low power condition. This signal must be kept low long enough for an interrupt to be recognized by the device. Otherwise the
IDLE mode will not be exited and the device will go back into the indicated low power mode.
The IDLE mode on the C28x behaves differently than on the 24x/240x. On the C28x, the clock output from the CPU (SYSCLKOUT) is
still functional while on the 24x/240x the clock is turned off.
On the C28x, the JTAG port can still function even if the CPU clock (CLKIN) is turned off.
(2)
(3)
The various low-power modes operate as follows:
IDLE Mode:
This mode is exited by any enabled interrupt or an XNMI that is recognized by
the processor. The LPM block performs no tasks during this mode as long as the
LPMCR0(LPM) bits are set to 0,0.
Any GPIO port A signal (GPIO[31:0]) can wake the device from STANDBY
mode. The user must select which signal(s) will wake the device in the
GPIOLPMSEL register. The selected signal(s) are also qualified by the OSCCLK
before waking the device. The number of OSCCLKs is specified in the LPMCR0
register.
Only the XRS and any GPIO port A signal (GPIO[31:0]) can wake the device
from HALT mode. The user selects the signal in the GPIOLPMSEL register.
STANDBY Mode:
HALT Mode:
NOTE
The low-power modes do not affect the state of the output pins (PWM pins included).
They will be in whatever state the code left them in when the IDLE instruction was
executed. See the
TMS320x280x System Control and Interrupts Reference Guide
(literature number SPRU712) for details.
Submit Documentation Feedback
Functional Overview
39
相關(guān)PDF資料
PDF描述
TMS320F28044GGMS Digital Signal Processor
TMS320F28044PZQ Digital Signal Processor
TMS320LC545 Digital Signal Processors(20/25ns指令周期， 高性能，大并行度，特殊指令集可有效實(shí)現(xiàn)多種復(fù)雜算法及應(yīng)用的DSP)
TMS320LC546 Digital Signal Processors(20/25ns指令周期， 高性能，大并行度，特殊指令集可有效實(shí)現(xiàn)多種復(fù)雜算法及應(yīng)用的DSP)
TMS320LC57S Digital Signal Processors(35/50ns指令周期，并行邏輯單元，可編程PLL，全雙工同步串行口的DSP)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TMS320F28044PZA 功能描述:數(shù)字信號處理器和控制器 - DSP, DSC 32-Bit DSC w/ 128KB Flash RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時(shí)鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時(shí)器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT
TMS320F28044PZS 功能描述:數(shù)字信號處理器和控制器 - DSP, DSC 32-Bit DSC w/ 128KB Flash RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時(shí)鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時(shí)器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT
TMS320F28045PZA 制造商:Texas Instruments 功能描述:- Trays
TMS320F28045PZS 制造商:Texas Instruments 功能描述:- Trays
TMS320F28050PNQ 制造商:Texas Instruments 功能描述:GIZMO
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報(bào)價(jià)

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*