AX99100 is a single-chip solution that fully integrates PCIe 2.0 endpoint controller and SerDes with peripherals, Such as two/four high-speed serial ports, one parallel port, I2C master, high-speed SPI, local bus (ISA-Like) and GPIO. It consists 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 Dual Serial and SPI) Local Bus/ISA) - Like) Suitable for different types of applications. AX99100 is packaged in a 68-pin QFN package and is RoHS compliant. It supports commercial-grade operating temperature range from 0 to 70℃ and industrial-grade temperature range from -40 to 85℃. PCI Express Single- (X1) PCI Express endpoint with integrated PHY controller Complies with PCI Express card specifications, PCI Express 2.0 PCI Power Management 1.2 compliant Supports legacy and interrupts, ASPM power management -232 serial interface Dual or Quad UART Support -232/-422/-485 multi-protocol Bidirectional speeds up to 25 Mbps per port Full serial modem control Support hardware and software flow control Supports 5, 6, 7, 8 and 9-bit serial formats Supports even, odd, none, space and mark parity Supports custom baud rates via internal PLL or external clock Supports on-chip 256- depth , transmit and receive paths for each serial port Support remote wake and power Management functions Serial transceiver shutdown support Support slow IrDA mode (115200bps) on all serial ports Supports multipoint applications in 9-bit mode Support DMA burst transfer Note:Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Will Not Affect The Use Colour:As Shown Material:PCB Package Contents: 1 * PCIE AX99100 1S Serial Port Card 1 * CD-Driver Only the above package content, other products are not included. Note: Light reflection 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.