Filter
Top Products
www.ti.com
PRODUCT PREVIEW
3.11DefaultDeviceConfigurations
3.11.1DeviceConfigurationPins
TMS320DM355
DigitalMediaSystem-on-Chip(DMSoC)
SPRS463A–SEPTEMBER2007–REVISEDSEPTEMBER2007
Table3-14.ResetTypes(continued)
TypeInitiatorEffect
ModuleResetARMsoftwareResetsaspecificmodule.AllowstheARMto
independentlyresetanymodule.Moduleresetis
intendedasadebugtoolnotasatooltousein
production.
AfterPOR,warmreset,andmaxreset,thechipisinitsdefaultconfiguration.Thissectionhighlightsthe
defaultconfigurationsassociatedwithPLLs,clocks,ARMbootmode,andAEMIF.
NOTE
DefaultconfigurationistheconfigurationimmediatelyafterPOR,warmreset,andmax
resetandjustbeforethebootprocessbegins.ThebootROMupdatestheconfiguration.
SeeSection3.12formoreinformationonthebootprocess.
ThedeviceconfigurationpinsaredescribedinTable3-15.Thedeviceconfigurationpinsarelatchedat
resetandallowyoutoconfigureallofthefollowingoptionsatreset:
•ARMBootMode
•AsynchronousEMIFpinconfiguration
Thesepinsaredescribedfurtherinthefollowingsections.
NOTE
ThedeviceconfigurationpinsaremultiplexedwithAEMIFpins.Afterthedevice
configurationpinsaresampledatreset,theyautomaticallychangetofunctionasAEMIF
pins.PinmultiplexingisdescribedinSection3.8.
Table3-15.DeviceConfiguration
DefaultSetting(by
internal
DeviceSampledpull-up/
ConfigurationInputFunctionPinpull-down)DeviceConfigurationAffected
BTSEL[1:0]SelectsARMbootmodeEM_A[13:12]00IfanyROMbootmodeisselected,GIO61
00=BootfromROM(NAND)(NAND)isusedtoindicatedbootstatus.
01=BootfromAEMIFIfNANDbootisselected,CE0isusedfor
10=BootfromROMNAND.UseAECFG[3:0]toconfigure
(MMC/SD)AEMIFpinsforNAND.
11=BootfromROM(UART)IfAEMIFbootisselected,CE0isusedfor
AEMIFdevice(OneNAND,ROM).Use
AECFG[3:0]toconfigureAEMIFpinsfor
NAND.
IfMMC/SDbootisselected,MMC/SD0is
used.
AECFG[3:0]SelectsAEMIFpinEM_A[11:8]1101SelectstheAEMIFpinconfiguration.Refer
configuration(NAND)topin-muxinginformationinSection3.9.1.
NotethatAECFG[3:0]affectsbothAEMIF
(BTSEL[1:0]=01)andNAND
(BTSEL[1:0]=00)bootmodes.
DetailedDeviceDescription 80SubmitDocumentationFeedback