[[bc10]] *Keypad [#k89418e8] > This is the information of the keypad board, which is connected to the left expansion slot (from AMOLED side) of bc10.~ This board is attached to the oppose side of the standard expansion board (which comes with power supply). To use this~ board, a keypad can be added at the other side of the standard expansion board. This board has a pad, which is used for~ connecting GPIO (x4) and UART1.~ > - Design -- Schematic and Gerber data > ||OrCAD Version|pdf Version| |Schematic|&ref(bc10-007-0003.dsn);|&ref(bc10-007-0003.pdf);| |Gerber|&ref(bc10-007-0003.zip);|&ref(bc10-007-0003_gerber.pdf);| > -- Parts list > |Name|Specs|Maker|qty.|Memo| |Connector|14 5078 030 510 861+|KYOCERA ELCO| 1|| ** About the pad for extended wiring [#wcfc30b4] On the side that the connector is attached, the pad is also connected. (This pad handles GPIO (x4) and UART1.) > --On the side that the connector is attached, the pad is also connected. (This pad handles GPIO (x4) and UART1.) > |Signal Name |Registration ID|Memo| |GPIO_152|G152 |C-MOS 1.8Vlevel| |GPIO_153|G153 |C-MOS 1.8Vlevel| |GPIO_154|G154 |C-MOS 1.8Vlevel| |GPIO_155|G155 |C-MOS 1.8Vlevel| |UART1_TX|U1TX |C-MOS 1.8Vlevel| |UART1_RX|U1RX |C-MOS 1.8Vlevel| |UARR1_TX_3V|U1TX_3V |C-MOS 3.3Vlevel *1)| |UART1_RX_3V|U1RX_3V |C-MOS 3.3Vlevel *1)| |VCC_1V8 |1.8V | | |VCC_3V3 |3.3V | | 1)~ To use 3.3V level wire, parts for voltage converter is required and needed to be installed, separately. List of the required parts~ are listed below.~ > -- 1)To use 3.3V level wire, parts for voltage converter is required and needed to be installed, separately. List of the required parts are listed below.~ > |U1|TXS0102 (DCU)|a product of Texas Instruments, Inc. DCU package (For more [[info>http://focus.tij.co.jp/jp/docs/prod/folders/print/txs0102.html]])| |R1|10kΩ |1608| |C1|0.1μF|1608| |C2|0.1μF|1608|