tw(RSL1) th(boot-mode)(C) V (3.3 V) DDIO DDA , INTOSC1 X" />
參數(shù)資料
型號(hào): TMDXCNCD28069ISO
廠商: Texas Instruments
文件頁數(shù): 138/174頁
文件大?。?/td> 0K
描述: EVAL PICCOLO CONTROLCARD
標(biāo)準(zhǔn)包裝: 1
系列: TMS320F2806x, Piccolo™, C2000™
主要目的: 接口,RS232,GPIO
嵌入式: 是,MCU,32 位
已用 IC / 零件: TMS320F2806x
已供物品:
tw(RSL1)
th(boot-mode)(C)
V
(3.3 V)
DDIO
DDA
,
INTOSC1
X1/X2
XRS
(D)
Boot-Mode
Pins
V
(1.8 V)
DD
XCLKOUT
User-code dependent
Boot-ROM execution starts
Peripheral/GPIO function
Based on boot code
GPIO pins as input
t
OSCST
Address/Data/
Control
(Internal)
Address/data valid, internal boot-ROM code execution phase
User-code execution phase
td(EX)
t
INTOSCST
(A)
(B)
I/O Pins
GPIO pins as input (state depends on internal PU/PD)
User-code dependent
(E)
SPRS698D – NOVEMBER 2010 – REVISED DECEMBER 2012
5.5
Power Sequencing
There is no power sequencing requirement needed to ensure the device is in the proper state after reset
or to prevent the I/Os from glitching during power up or power down (GPIO19, GPIO26–27, GPIO34–38
do not have glitch-free I/Os). No voltage larger than a diode drop (0.7 V) above VDDIO should be applied to
any digital pin (for analog pins, it is 0.7 V above VDDA) prior to powering up the device. Voltages applied to
pins on an unpowered device can bias internal p-n junctions in unintended ways and produce
unpredictable results.
A.
Upon power up, SYSCLKOUT is OSCCLK/4. Since the XCLKOUTDIV bits in the XCLK register come up with a reset
state of 0, SYSCLKOUT is further divided by 4 before it appears at XCLKOUT. XCLKOUT = OSCCLK/16 during this
phase.
B.
Boot ROM configures the DIVSEL bits for /1 operation. XCLKOUT = OSCCLK/4 during this phase. Note that
XCLKOUT will not be visible at the pin until explicitly configured by user code.
C.
After reset, the boot ROM code samples Boot Mode pins. Based on the status of the Boot Mode pin, the boot code
branches to destination memory or boot code function. If boot ROM code executes after power-on conditions (in
debugger environment), the boot code execution time is based on the current SYSCLKOUT speed. The SYSCLKOUT
will be based on user environment and could be with or without PLL enabled.
D.
Using the XRS pin is optional due to the on-chip power-on reset (POR) circuitry.
E.
The internal pullup or pulldown will take effect when BOR is driven high.
Figure 5-4. Power-on Reset
66
Peripheral and Electrical Specifications
Copyright 2010–2012, Texas Instruments Incorporated
相關(guān)PDF資料
PDF描述
ECM30DCBD CONN EDGECARD 60POS R/A .156 SLD
MCZ33742SEGR2 IC SYSTEM BASIS CHIP CAN 28-SOIC
H3AKH-3418G IDC CABLE - HSC34H/AE34G/HPK34H
EVAL-AD5235SDZ BOARD EVAL FOR AD5235
MCZ33742EGR2 IC SYSTEM BASIS CHIP CAN 28-SOIC
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TMDXCNCD28075 功能描述:TMS320F28075 controlCARD C2000?, Piccolo? MCU 32-Bit C28x Embedded Evaluation Board 制造商:texas instruments 系列:C2000??,Piccolo?? 零件狀態(tài):過期 板類型:評(píng)估平臺(tái) 類型:MCU 32-位 核心處理器:C28x 操作系統(tǒng):- 平臺(tái):controlCARD 配套使用產(chǎn)品/相關(guān)產(chǎn)品:TMS320F28075 安裝類型:固定 內(nèi)容:板 標(biāo)準(zhǔn)包裝:1
TMDXCNCD28343 功能描述:插座和適配器 Delfino C28343 controlCARD RoHS:否 制造商:Silicon Labs 產(chǎn)品:Adapter 用于:EM35x
TMDXCNCD28346-168 功能描述:插座和適配器 Delfino C28346 DIM168 ControlCARD RoHS:否 制造商:Silicon Labs 產(chǎn)品:Adapter 用于:EM35x
TMDXCNCD28377D 功能描述:TMS320F28377D controlCARD C2000?, Delfino? MCU 32-Bit C28x Embedded Evaluation Board 制造商:texas instruments 系列:C2000? Delfino? 零件狀態(tài):過期 板類型:評(píng)估平臺(tái) 類型:MCU 32-位 核心處理器:C28x 操作系統(tǒng):- 平臺(tái):controlCARD 配套使用產(chǎn)品/相關(guān)產(chǎn)品:TMS320F28377D 安裝類型:固定 內(nèi)容:板,電纜 標(biāo)準(zhǔn)包裝:1
TMDXCNCDH52C1 功能描述:子卡和OEM板 H52C1 Concerto controlCARD RoHS:否 制造商:BeagleBoard by CircuitCo 產(chǎn)品:BeagleBone LCD4 Boards 用于:BeagleBone - BB-Bone - Open Source Development Kit