AX99100 is a single-chip solution that can fully integrate PCIe 2.0 Gen 1 endpoint controller and SerDes with various peripherals, such as two/four high-speed serial ports, one parallel port, I2C master, high-speed SPI, local Bus (ISA-Like)) and GPIO.Composed of four main configurations, such as 2S (PCIe to Dual Serial), 2S + 1P (PCIe to dual serial and single parallel),2S + SPI (PCIe to dual serial and SPI) and LB (PCIe to local bus/ISA)-Like) are suitable for different types of applications.Compatible devices: serial connected devices, serial network/monitoring equipment, data acquisition systems, POS terminals and industrial PCs, serial I/OUSB for add-on cards, I/O expansion for embedded systemsSingle-channel (X1) PCI Express endpoint with integrated PHY controllerComply with PCI Express card specifications, PCI Express 2.0 Gen 1Compliant with PCI Power Management 1.2Support traditional and MSI interrupts, ASPM power managementRS-232 serial interface:Dual or quad UARTSupport RS-232 / RS-422 / RS-485 multi-protocolUp to 25 Mbps bidirectional speed per portFull serial modem controlSupport hardware and software flow controlSupports 5, 6, 7, 8 and 9-bit serial formatsSupport even, odd, none, space and mark paritySupport custom baud rate through internal PLL or external clockSupport on-chip 256-byte deep FIFO, each serial ports sending and receiving pathSupport remote wakeup and powerColour:greenMaterial: pcbSize:72 x 64 x 3mmPackage Contents:1 x Serial cardOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.