- 您现在的位置：买卖IC网 > Sheet目录366 > TMDXEVM5515 (Texas Instruments)EVAL MODULE DSP FOR C55XX
SPRS645F – AUGUST 2010 – REVISED OCTOBER 2013
Power Down Sequence:
1. CPU must set the LDO_PD bit or the BG_PD bit in the RTCPMGT register (See Figure 5-26 ). Once
the LDO_PD bit or the BG_PD bit is set to 1, the DSP_LDOO will be internally shut off and it will cause
the internal POR holds the internal POWERGOOD signal low, which creates isolation for RTC.
2. All of the device power domains can be shut down except RTC Core (CVDDRTC), RTC I/O
(DVDDRTC), and LDO inputs (LDOI).
Wake-Up Sequence:
1. When waking up the device, all power domains must be turned back on before or upon applying a
pulse to WAKEUP.
2. A pulse ( ≥ 30.5 μs) must be applied to the WAKEUP pin (active high). When the WAKEUP pin is
asserted, the voltage on the DSP_LDOO pin will start ramping up at the positive level of WAKEUP and
it is monitored by the internal POR. Until the voltage reaches to the threshold level, the internal POR
will hold the internal POWERGOOD signal low, which provides isolation to RTC during transition
period. Once the voltage reaches to the threshold level, the internal POR asserts the internal
POWERGOOD signal (logic level high) and it resets reset of the system and disables RTC isolation
and enables CPU to communicate with RTC.
Figure 5-26. RTC Power Management Register (RTCPMGT) [1930h]
15
Reserved
R-0
8
7
Reserved
R-0
5
4
WU_DOUT
R/W-1
3
WU_DIR
R/W-0
2
BG_PD
R/W-0
1
LDO_PD
R/W-0
0
RTCCLKOUTEN
R/W-0
LEGEND: R/W = Read/Write; R = Read only; - n = value after reset
Table 5-24. RTCPMGT Register Bit Descriptions
BIT
15:5
4
3
2
NAME
RESERVED
WU_DOUT
WU_DIR
BG_PD
DESCRIPTION
Reserved. Read-only, writes have no effect.
Wakeup output, active low/open-drain.
0 = WAKEUP pin driven low.
1 = WAKEUP pin is in high-impedance (Hi-Z).
Wakeup pin direction control.
0 = WAKEUP pin configured as a input.
1 = WAKEUP pin configured as a output.
Note: When the WAKEUP pin is configured as an input, it is active high. When the WAKEUP pin is
configured as an output, is an open-drain that is active low and should be externally pulled-up via a
10-k Ω resistor to DV DDRTC . WU_DIR must be configured as an input to allow the WAKEUP pin to
wake the device up from idle modes.
Bandgap, on-chip LDOs, and the analog POR power down bit.
This bit shuts down the on-chip LDOs (ANA_LDO, DSP_LDO, and USB_LDO), the Analog POR,
and Bandgap reference. BG_PD and LDO_PD are only intended to be used when the internal
LDOs supply power to the chip. If the internal LDOs are bypassed and not used then the BG_PD
and LDO_PD power down mechanisms should not be used since POR gets powered down and the
POWERGOOD signal is not generated properly.
After this bit is asserted, the on-chip LDOs, Analog POR, and the Bandgap reference can be re-
enabled by the WAKEUP pin (high) or the RTC alarm interrupt. The Bandgap circuit will take about
100 msec to charge the external 0.1 uF capacitor via the internal 326-k Ω resistor.
0 = On-chip LDOs, Analog POR, and Bandgap reference are enabled.
1 = On-chip LDOs, Analog POR, and Bandgap reference are disabled (shutdown).
Copyright ? 2010–2013, Texas Instruments Incorporated
Peripheral Information and Electrical Specifications
Product Folder Links: TMS320C5515
109
发布紧急采购，3分钟左右您将得到回复。
相关PDF资料
TMDXEXP1808L
KIT EXPERIMENTER FOR AM180X
TO263-3EV-VREG
BOARD EVAL TO220-3/TO263-3 VREG
TO263-5EV-VREG
EVAL BOARD VREG TO220-5/TO263-5
TOOLSTICK-EK
KIT TOOL EVAL SYS IN A USB STICK
TPS23757EVM
EVALUATION MODULE FOR TPS23757
TPS62230EVM-370
EVAL MODULE FOR TPS62230-370
TRAVELCUBE
SURGE SUP 1OUT W/RJ11 DIRECTPLUG
TRAVELER100BT
SURGE SUP 2OUT W/RJ11 DIRECTPLUG
相关代理商/技术参数
TMDXEVM5515
制造商:Texas Instruments 功能描述:TMS320C5515 DSP Evaluation Module
TMDXEVM642
制造商:Texas Instruments 功能描述:Tools Development kit For Use
TMDXEVM6424
功能描述:开发板和工具包 - TMS320 C6424 DSP Eval Mod RoHS:否 制造商:Texas Instruments 产品:Experimenter Kits 工具用于评估:F2802x 核心:TMS320 接口类型:UART, USB 工作电源电压:
TMDXEVM6446
制造商:Rochester Electronics LLC 功能描述:DAVINCI EVM BUNDLE W/O EMULATOR - Bulk 制造商:Texas Instruments 功能描述:DAVINCI EVM BUNDLE W/O EMULATOR - Bulk
TMDXEVM6446T
制造商:Texas Instruments 功能描述:DM6446 DIGITAL VIDEO EVALUATION MODULE - Boxed Product (Development Kits)
TMDXEVM6446TS
制造商:Texas Instruments 功能描述:DM6446 DIGITAL VIDEO EVALUATION MODULE - Trays
TMDXEVM6452
功能描述:开发板和工具包 - TMS320 C6452 EVM Evaluation Module RoHS:否 制造商:Texas Instruments 产品:Experimenter Kits 工具用于评估:F2802x 核心:TMS320 接口类型:UART, USB 工作电源电压:
TMDXEVM6455
功能描述:开发板和工具包 - TMS320 C6455 Evaluation Module RoHS:否 制造商:Texas Instruments 产品:Experimenter Kits 工具用于评估:F2802x 核心:TMS320 接口类型:UART, USB 工作电源电压: