CH9121 Nanjing Qinheng Ethernet transceiver original stock
summary
CH9121 is a network serial port transparent transmission chip. CH9121 integrates the TCP/IP protocol stack internally, which enables bidirectional transparent transmission of network packets and serial data. It has four working modes: TCP CLIENT, TCP SERVER, UDP CLIENT, and UDP SERVER. The serial port baud rate can support up to 921600bps and can be easily configured through upper computer software or serial commands, making it convenient and fast.
characteristic
Internally equipped with Ethernet media transport layer (MAC) and physical layer (PHY)
● Realize bidirectional transparent transmission of serial port data and network data
● Supports 10/100M, full duplex/half duplex adaptive Ethernet interface, compatible with 802.3 protocol
● Support automatic conversion of MDI/MDIX lines
● Supports DHCP automatic IP address acquisition and DNS domain name access
● Set chip working mode, ports, IP and other network parameters through upper computer software and serial port commands
The working mode supports four modes: TCP CLIENT, TCP SERVER, UDP CLIENT, and UDP SERVER
● Supports up to two independent serial ports simultaneously, with independent transparent transmission
The serial port baud rate supports 300bps to 921600bps
● Serial TTL level, compatible with 3.3V and 5V
The serial port supports full duplex and half duplex serial communication, and supports automatic switching between RS485 transmission and reception
● Support and provide virtual serial port software
CH9121 is a network serial port transparent transmission chip. CH9121 integrates the TCP/IP protocol stack internally, which enables bidirectional transparent transmission of network packets and serial data. It has four working modes: TCP CLIENT, TCP SERVER, UDP CLIENT, and UDP SERVER. The serial port baud rate can support up to 921600bps and can be easily configured through upper computer software or serial commands, making it convenient and fast.
characteristic
Internally equipped with Ethernet media transport layer (MAC) and physical layer (PHY)
● Realize bidirectional transparent transmission of serial port data and network data
● Supports 10/100M, full duplex/half duplex adaptive Ethernet interface, compatible with 802.3 protocol
● Support automatic conversion of MDI/MDIX lines
● Supports DHCP automatic IP address acquisition and DNS domain name access
● Set chip working mode, ports, IP and other network parameters through upper computer software and serial port commands
The working mode supports four modes: TCP CLIENT, TCP SERVER, UDP CLIENT, and UDP SERVER
● Supports up to two independent serial ports simultaneously, with independent transparent transmission
The serial port baud rate supports 300bps to 921600bps
● Serial TTL level, compatible with 3.3V and 5V
The serial port supports full duplex and half duplex serial communication, and supports automatic switching between RS485 transmission and reception
● Support and provide virtual serial port software
● Support KEEPALIVE mechanism
