Texas Instruments AM18x evaluation module with Wi-Fi TMDXEVMWIFI1808L TMDXEVMWIFI1808L 데이터 시트
제품 코드
TMDXEVMWIFI1808L
SPRS653E – FEBRUARY 2010 – REVISED MARCH 2014
3.8
Unused Pin Configurations
All signals multiplexed with multiple functions may be used as an alternate function if a given peripheral is
not used. Unused non-multiplexed signals and some other specific signals should be handled as specified
in the tables below.
not used. Unused non-multiplexed signals and some other specific signals should be handled as specified
in the tables below.
If NMI is unused, it should be pulled-high externally through a 10k-ohm resistor to supply DVDD3318_B.
Table 3-30. Unused USB0 and USB1 Signal Configurations
Configuration (When USB0 and USB1 are not
SIGNAL NAME
Configuration (When only USB1 is not used)
used)
USB0_DM
No Connect
Use as USB0 function
USB0_DP
No Connect
Use as USB0 function
USB0_ID
No Connect
Use as USB0 function
USB0_VBUS
No Connect
Use as USB0 function
USB0_DRVVBUS
No Connect
Use as USB0 function
USB0_VDDA33
No Connect
3.3V
USB0_VDDA18
No Connect
1.8V
USB0_VDDA12
Internal USB PHY output connected to an external 0.22-
μF filter capacitor
USB1_DM
No Connect
VSS or No Connect
USB1_DP
No Connect
VSS or No Connect
USB1_VDDA33
No Connect
No Connect
USB1_VDDA18
No Connect
No Connect
USB_REFCLKIN
No Connect or other peripheral function
Use for USB0 or other peripheral function
USB_CVDD
1.2V
1.2V
Table 3-31. Unused SATA Signal Configuration
SIGNAL NAME
Configuration
SATA_RXP
No Connect
SATA_RXN
No Connect
SATA_TXP
No Connect
SATA_TXN
No Connect
SATA_REFCLKP
No Connect
SATA_REFCLKN
No Connect
SATA_MP_SWITCH
May be used as GPIO or other peripheral function
SATA_CP_DET
May be used as GPIO or other peripheral function
SATA_CP_POD
May be used as GPIO or other peripheral function
SATA_LED
May be used as GPIO or other peripheral function
SATA_REG
No Connect
SATA_VDDR
No Connect
Prior to silicon revision 2.0, this supply must be connected to a static 1.2V nominal supply.
SATA_VDD
For silicon revision 2.0 and later, this supply may be left unconnected for additional power
conservation.
SATA_VSS
VSS
Table 3-32. Unused RTC Signal Configuration
SIGNAL NAME
Configuration
RTC_XI
May be held high (CVDD) or low
RTC_XO
No Connect
RTC_ALARM
May be used as GPIO or other peripheral function
RTC_CVDD
Connect to CVDD
58
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