TS-TPC-7990 PCB Changelog

Revision	Changes
A	Initial Release
B	Changed to Marvell PHY Changed speaker to Piezo to save space, and it is louder for alarm implementations. Added Nimblelink Socket Fixed touch controller to have correct IRQ polarity for sleep mode Changed 5V regulator to provide higher current (2.5 A to 5 A) Fixed SW_5V FET from being held off by offboard RS-232 Auto select LCD voltage rails with no specific strapping resistors differentiating build Changed WIFI from TIWI-BLE to equivalent Atmel/Microchip WILC3000 module with 12 year availability. WIFI DOES NOT WORK ON THIS BOARD REVISION Micro USB ports both moved a few mm in to fix interference with daughter cards CN26 modified to support our daughtercards Backlight regulator has GPIO enable allowing backlight to be entirely turned off besides PWM. Removed SIM socket Changed scan on Microtips LCD to rotate 180 degrees to match other LCDs Added SATA/PCIe MUX. Mode is selected in u-boot. Changed 11V regulator Grounded CPU DIO (Ball L21) to identify REV B builds. Additional minor changes for internal production
C	WIFI moved to SPI to avoid SDIO bug in wifi chip. WIFI works now with latest kernel. R198 removed means REV C board. Added PCIe reset GPIO. Fixed some devices not working after a software reboot. XBEE_RESET# moved to FPGA GPIO TOUCH_RESET# moved to CPU GPIO so rare i2c bus lockups can be recovered with a reboot. Minor layout fixes Minor changes to CN99 for production