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CC3200 Datasheet(PDF) 20 Page - Texas Instruments |
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CC3200 Datasheet(HTML) 20 Page - Texas Instruments |
20 / 71 page CC3200 SWAS032F – JULY 2013 – REVISED FEBRUARY 2015 www.ti.com Table 3-1. Pin Multiplexing (continued) General Pin Attributes Function Pad States Pkg Pin Pin Alias Use Select as Config Muxed Dig. Pin Mux Config Dig. Pin Signal Name Signal Signal LPDS(1) Hib(2) nRESET = 0 Wakeup Addl with Reg Mux Description Direction Source Analog JTAG Config Mux Mode Value General-Purpose 0 GPIO8 I/O I/O 6 SDCARD_IRQ Interrupt from SD I Card (Future GPIO_PAD_CONFIG_ support) 63 GPIO8 I/O No No No 8 Hi-Z Hi-Z Hi-Z (0x4402 E0C0) 7 McAFSX I2S Audio Port O Frame Sync 12 GT_CCP06 Timer Capture I Port General-Purpose 0 GPIO9 I/O I/O 3 GT_PWM05 Pulse Width O Modulated O/P GPIO_PAD_CONFIG_ 6 SDCARD_ SD Cad Data I/O 64 GPIO9 I/O No No No 9 Hi-Z Hi-Z Hi-Z DATA0 (0x4402 E0C4) 7 McAXR0 I2S Audio Port I/O Data (Rx/Tx) 12 GT_CCP00 Timer Capture I Port 65 GND_TAB Thermal pad and electrical ground (1) LPDS mode: The state of unused GPIOs in LPDS is input with 500 k Ω pulldown. For all used GPIOs , the user can enable internal pulls, which would hold them in a valid state. (2) Hibernate mode: The CC3200 device leaves the digital pins in a Hi-Z state without any internal pulls when the device enters hibernate state. This can cause glitches on output lines unless held at valid levels by external resistors. (3) To minimize leakage in some serial flash vendors during LPDS, TI recommends the user application always enable internal weak pulldowns on FLASH_SPI_DATA and FLASH_SPI_CLK pins. (4) This pin has dual functions: as a SOP[2] (device operation mode), and as an external TCXO enable. As a TXCO enable, the pin is an output on power up and driven logic high. During hibernate low-power mode, the pin is in a high impedance state but pulled down for SOP mode to disable TCXO. Because of SOP functionality, the pin must be used as output only. (5) Higher leakage current from the onboard serial flash can occur due to floating inputs when the device enters Hibernate mode. See reference schematics for recommended pull-up and pull-down resistors. (6) For details on proper use, see Section 3.2, Drive Strength and Reset States for Analog-Digital Multiplexed Pins. (7) This pin is one of three that must have a passive pullup or pulldown resistor on board to configure the chip hardware power-up mode. For this reason, the pin must be output only when used for digital functions. (8) This pin is reserved for WLAN antenna selection, controlling an external RF switch that multiplexes the RF pin of the CC3200 device between two antennas. These pins should not be used for other functionalities in general. 20 Terminal Configuration and Functions Copyright © 2013–2015, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Links: CC3200 |
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